diff --git a/_data/category/example.yml b/_data/category/example.yml
new file mode 100644
index 000000000..f0802f3a4
--- /dev/null
+++ b/_data/category/example.yml
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+- name:  Example MATLAB scripts
+  link:  /example
+
+- name:  Apply non-parametric statistics with clustering on TFRs of power that were computed with BESA
+  link:  /example/apply_clusterrandanalysis_on_tfrs_of_power_that_were_computed_with_besa
+
+- name:  BIDS - the brain imaging data structure
+  link:  /example/bids
+
+- name:  Converting an example audio dataset for sharing in BIDS
+  link:  /example/bids_audio
+
+- name:  Converting an example behavioral dataset for sharing in BIDS
+  link:  /example/bids_behavioral
+
+- name:  Converting an example EEG dataset for sharing in BIDS
+  link:  /example/bids_eeg
+
+- name:  Converting an example EMG dataset for sharing in BIDS
+  link:  /example/bids_emg
+
+- name:  Converting an example eyetracker dataset for sharing in BIDS
+  link:  /example/bids_eyetracker
+
+- name:  Converting an example MEG dataset for sharing in BIDS
+  link:  /example/bids_meg
+
+- name:  Converting an example motion tracking dataset for sharing in BIDS
+  link:  /example/bids_motion
+
+- name:  Converting the combined MEG/fMRI MOUS dataset for sharing in BIDS
+  link:  /example/bids_mous
+
+- name:  Converting an example NIRS dataset for sharing in BIDS
+  link:  /example/bids_nirs
+
+- name:  Combining simultaneous recordings in BIDS
+  link:  /example/bids_pom
+
+- name:  Converting an example video dataset for sharing in BIDS
+  link:  /example/bids_video
+
+- name:  Example analysis pipeline for Biosemi data
+  link:  /example/biosemi
+
+- name:  How to use ft_checkconfig
+  link:  /example/checkconfig
+
+- name:  Effect of SNR on Coherence
+  link:  /example/coherence_snr
+
+- name:  Combined EEG and MEG source reconstruction
+  link:  /example/combined_eeg_and_meg_source_reconstruction
+
+- name:  The correct pipeline order for combining planar MEG channels
+  link:  /example/combineplanar_pipelineorder
+
+- name:  Common filters in beamforming
+  link:  /example/common_filters_in_beamforming
+
+- name:  Compute forward simulated data using ft_dipolesimulation
+  link:  /example/compute_forward_simulated_data
+
+- name:  Compute forward simulated data and apply a beamformer scan
+  link:  /example/compute_forward_simulated_data_and_apply_a_beamformer_scan
+
+- name:  Compute forward simulated data and apply a dipole fit
+  link:  /example/compute_forward_simulated_data_and_apply_a_dipole_fit
+
+- name:  Compute forward simulated data with the low-level ft_compute_leadfield
+  link:  /example/compute_leadfield
+
+- name:  Conditional Granger causality in the frequency domain
+  link:  /example/connectivity_conditional_granger
+
+- name:  Check the quality of the anatomical coregistration
+  link:  /example/coregistration_quality_control
+
+- name:  Correlation analysis of fMRI data
+  link:  /example/correlation_analysis_in_fmri_data
+
+- name:  Cross-frequency analysis
+  link:  /example/crossfreq
+
+- name:  Detect the muscle activity in an EMG channel and use that as trial definition
+  link:  /example/detect_the_muscle_activity_in_an_emg_channel_and_use_that_as_trial_definition
+
+- name:  Determine the filter characteristics
+  link:  /example/determine_the_filter_characteristics
+
+- name:  Localizing the sources underlying the difference in event-related fields
+  link:  /example/difference_erf
+
+- name:  Fit a dipole to the tactile ERF after mechanical stimulation
+  link:  /example/dipolefit_somatosensory_erf
+
+- name:  Analysis of high-gamma band signals in human ECoG
+  link:  /example/ecog_ny
+
+- name:  Effects of tapering for power estimates
+  link:  /example/effects_of_tapering
+
+- name:  Computing and reporting the effect size
+  link:  /example/effectsize
+
+- name:  Align EEG electrode positions to BEM headmodel
+  link:  /example/electrodes2bem
+
+- name:  Perform modified Multiscale Entropy (mMSE) analysis on EEG/MEG/LFP data
+  link:  /example/entropy_analysis
+
+- name:  Compute EEG leadfields using a FEM headmodel
+  link:  /example/fem
+
+- name:  How to create a head model if you do not have an individual MRI
+  link:  /example/fittemplate
+
+- name:  Fixing a missing channel
+  link:  /example/fixing_a_missing_sensor
+
+- name:  Fitting oscillations and one-over-F (FOOOF)
+  link:  /example/fooof
+
+- name:  Example real-time average
+  link:  /example/ft_realtime_average
+
+- name:  Example real-time classification
+  link:  /example/ft_realtime_classification
+
+- name:  Realtime neurofeedback application based on Hilbert phase estimation
+  link:  /example/ft_realtime_hilbert
+
+- name:  Example real-time power estimate
+  link:  /example/ft_realtime_powerestimate
+
+- name:  Example real-time selective average
+  link:  /example/ft_realtime_selectiveaverage
+
+- name:  Example real-time signal viewer
+  link:  /example/ft_realtime_signalviewer
+
+- name:  Getting started with reading raw EEG or MEG data
+  link:  /example/getting_started_with_reading_raw_eeg_or_meg_data
+
+- name:  Using General Linear Modeling on time series data
+  link:  /example/glm_timeseries
+
+- name:  Using General Linear Modeling over trials
+  link:  /example/glm_trials
+
+- name:  How to incorporate head movements in MEG analysis
+  link:  /example/headmovement_meg
+
+- name:  Independent component analysis (ICA) to remove ECG artifacts
+  link:  /example/ica_ecg
+
+- name:  Independent component analysis (ICA) to remove EOG artifacts
+  link:  /example/ica_eog
+
+- name:  How to import data from MNE-Python and FreeSurfer
+  link:  /example/import_mne
+
+- name:  Irregular Resampling Auto-Spectral Analysis (IRASA)
+  link:  /example/irasa
+
+- name:  Make MEG leadfields using different headmodels
+  link:  /example/make_leadfields_using_different_headmodels
+
+- name:  Measuring the timing delay and jitter for a real-time application
+  link:  /example/measuring_the_timing_delay_and_jitter_for_a_real-time_application
+
+- name:  Combine MEG with Eyelink eyetracker data
+  link:  /example/meg_eyelink
+
+- name:  Interpolating data from the CTF151 to the CTF275 sensor array using megrealign
+  link:  /example/megrealign
+
+- name:  Defining electrodes as neighbours for cluster-level statistics
+  link:  /example/neighbours
+
+- name:  Analyzing NIRS data recorded during unilateral finger- and foot-tapping
+  link:  /example/nirs_fingertapping
+
+- name:  Using GLM to analyze NIRS timeseries data
+  link:  /example/nirs_glm
+
+- name:  Creating a layout for plotting NIRS optodes and channels
+  link:  /example/nirs_layout
+
+- name:  Analyzing NIRS data recorded during listening to and repeating speech
+  link:  /example/nirs_speech
+
+- name:  Simulate an oscillatory signal with phase resetting
+  link:  /example/phase_reset
+
+- name:  Find the orientation of planar gradiometers
+  link:  /example/planar_orientation
+
+- name:  Plotting the result of source reconstruction on a cortical mesh
+  link:  /example/plotting_source_surface
+
+- name:  Making your analysis pipeline reproducible using reproducescript
+  link:  /example/reproducescript
+
+- name:  Using reproducescript on a full study
+  link:  /example/reproducescript_andersen
+
+- name:  Using reproducescript for a group analysis
+  link:  /example/reproducescript_group
+
+- name:  Re-reference EEG and iEEG data
+  link:  /example/rereference
+
+- name:  Using simulations to estimate the sample size for cluster-based permutation test
+  link:  /example/samplesize
+
+- name:  Source statistics
+  link:  /example/source_statistics
+
+- name:  Create MNI-aligned grids in individual head-space
+  link:  /example/sourcemodel_aligned2mni
+
+- name:  Fitting a template MRI to the MEG Polhemus head shape
+  link:  /example/sphere_fitting
+
+- name:  Analyze Steady-State Visual Evoked Potentials (SSVEPs)
+  link:  /example/ssvep
+
+- name:  Stratify the distribution of one variable that differs in two conditions
+  link:  /example/stratify
+
+- name:  Symmetric dipole pairs for beamforming
+  link:  /example/symmetry
+
+- name:  Testing BEM created EEG lead fields
+  link:  /example/testing_bem_created_leadfields
+
+- name:  Using threshold-free cluster enhancement for cluster statistics
+  link:  /example/threshold_free_cluster_enhancement
+
+- name:  Making your own trialfun for conditional trial definition
+  link:  /example/trialfun
+
+- name:  Use denoising source separation (DSS) to remove ECG artifacts
+  link:  /example/use_denoising_source_separation_dss_to_remove_ecg_artifacts
+
+- name:  Use simulated ERPs to explore cluster statistics
+  link:  /example/use_simulated_erps_to_explore_cluster_statistics
+
+- name:  Use your own forward leadfield model in an inverse beamformer computation
+  link:  /example/use_your_own_forward_leadfield_model_in_an_inverse_beamformer_computation
+
+- name:  Making a synchronous movie of EEG or NIRS combined with video recordings
+  link:  /example/video_eeg
+
+- name:  Can I create an artificial CTF dataset using MATLAB?
+  link:  /example/writing_simulated_data_to_a_ctf_dataset
+
diff --git a/_data/category/faq.yml b/_data/category/faq.yml
new file mode 100644
index 000000000..19a9aefdc
--- /dev/null
+++ b/_data/category/faq.yml
@@ -0,0 +1,561 @@
+- name:  Frequently Asked Questions
+  link:  /faq
+
+- name:  What is the difference between the ACPC, MNI, SPM and TAL coordinate systems?
+  link:  /faq/acpc
+
+- name:  Where is the anterior commissure?
+  link:  /faq/anterior_commissure
+
+- name:  How can I append the files of two separate recordings?
+  link:  /faq/append_files
+
+- name:  How can I play back EEG/MEG and synchronous audio or video?
+  link:  /faq/audiovideo
+
+- name:  How should I specify the coordinate systems in a BIDS dataset?
+  link:  /faq/bids_coordsystem
+
+- name:  Can I do combined EEG and MEG source reconstruction?
+  link:  /faq/can_i_do_combined_eeg_and_meg_source_reconstruction
+
+- name:  Can I get an offline version of the documentation on the website?
+  link:  /faq/can_i_get_an_offline_version_of_the_wiki_documentation
+
+- name:  Can I organize my own FieldTrip workshop?
+  link:  /faq/can_i_organize_my_own_workshop
+
+- name:  Can I prevent "external" toolboxes from being added to my MATLAB path?
+  link:  /faq/can_i_prevent_external_toolboxes_from_being_added_to_my_matlab_path
+
+- name:  Can I restrict the source reconstruction to the grey matter?
+  link:  /faq/can_i_restrict_the_source_reconstruction_to_the_grey_matter
+
+- name:  Can I use Octave instead of MATLAB?
+  link:  /faq/can_i_use_octave_instead_of_matlab
+
+- name:  Can I use the FieldTrip logo on my poster?
+  link:  /faq/can_i_use_the_fieldtrip_logo_on_my_poster
+
+- name:  Can I compare EEG channels between different electrode caps?
+  link:  /faq/capmapping
+
+- name:  Which methodological details should I report in an EEG/MEG manuscript?
+  link:  /faq/checklist
+
+- name:  What does the coilaccuracy parameter do?
+  link:  /faq/coilaccuracy
+
+- name:  Which colormaps are supported?
+  link:  /faq/colormap
+
+- name:  How can I compile the mex files and command-line executable?
+  link:  /faq/compile
+
+- name:  Can I use FieldTrip without MATLAB license?
+  link:  /faq/compiled
+
+- name:  Why should I set continuous to yes for CTF data?
+  link:  /faq/continuous
+
+- name:  How are the different head and MRI coordinate systems defined?
+  link:  /faq/coordsys
+
+- name:  How can I share my MEG data?
+  link:  /faq/data_sharing
+
+- name:  What dataformats are supported?
+  link:  /faq/dataformat
+
+- name:  Which datasets are used in the documentation and where are they used?
+  link:  /faq/datasets
+
+- name:  How can I deal with a discontinuous Neuralynx LFP recording?
+  link:  /faq/discontinuous_neuralynx
+
+- name:  Does the FieldTrip realtime buffer only work with MATLAB?
+  link:  /faq/does_the_fieldtrip_realtime_buffer_only_work_with_matlab
+
+- name:  Does it make sense to subtract the ERP prior to time frequency analysis, to distinguish evoked from induced power?
+  link:  /faq/evoked_vs_induced
+
+- name:  Which external toolboxes are used by FieldTrip?
+  link:  /faq/external
+
+- name:  How should I specify the fiducials for electrode realignment?
+  link:  /faq/fiducial
+
+- name:  What material is used for the flexible MEG headcasts?
+  link:  /faq/headcast
+
+- name:  How do homogenous coordinate transformation matrices work?
+  link:  /faq/homogenous
+
+- name:  How are electrodes, magnetometers or gradiometers described?
+  link:  /faq/how_are_electrodes_magnetometers_or_gradiometers_described
+
+- name:  How are the Left and Right Pre-Auricular (LPA and RPA) points defined?
+  link:  /faq/how_are_the_lpa_and_rpa_points_defined
+
+- name:  How are the various MATLAB data structures defined?
+  link:  /faq/how_are_the_various_data_structures_defined
+
+- name:  How can I anonymize or deidentify a BrainVision dataset?
+  link:  /faq/how_can_i_anonymize_a_brainvision_dataset
+
+- name:  How can I anonymize or deidentify a CTF dataset?
+  link:  /faq/how_can_i_anonymize_a_ctf_dataset
+
+- name:  How can I anonymize or deidentify an anatomical MRI?
+  link:  /faq/how_can_i_anonymize_an_anatomical_mri
+
+- name:  How can I anonymize or deidentify DICOM files?
+  link:  /faq/how_can_i_anonymize_dicom_files
+
+- name:  How can I anonymize data processed in FieldTrip?
+  link:  /faq/how_can_i_anonymize_fieldtrip_data
+
+- name:  How can I change the head localization in a CTF dataset?
+  link:  /faq/how_can_i_change_the_head_localization_in_a_ctf_dataset
+
+- name:  How can I check whether the grid that I have is aligned to the segmented volume and to the sensor gradiometer?
+  link:  /faq/how_can_i_check_whether_the_grid_that_i_have_is_aligned_to_the_segmented_volume_and_to_the_sensor_gradiometer
+
+- name:  How can I compile the mex files on 64-bit Windows?
+  link:  /faq/how_can_i_compile_the_mex_files_on_64_bit_windows
+
+- name:  How can I compile the mex files on macOS?
+  link:  /faq/how_can_i_compile_the_mex_files_on_os_x
+
+- name:  How can I consistently represent artifacts in my data?
+  link:  /faq/how_can_i_consistently_represent_artifacts_in_my_data
+
+- name:  How can I convert an anatomical MRI from DICOM into CTF format?
+  link:  /faq/how_can_i_convert_an_anatomical_mri_from_dicom_into_ctf_format
+
+- name:  How can I convert one dataformat into an other?
+  link:  /faq/how_can_i_convert_one_dataformat_into_an_other
+
+- name:  How can I debug my analysis script if a FieldTrip function gives an error?
+  link:  /faq/how_can_i_debug_my_analysis_script_if_a_fieldtrip_function_gives_an_error
+
+- name:  How can I define neighbouring sensors?
+  link:  /faq/how_can_i_define_neighbouring_sensors
+
+- name:  How can I determine the anatomical label of a source or electrode?
+  link:  /faq/how_can_i_determine_the_anatomical_label_of_a_source
+
+- name:  How can I determine the onset of an effect?
+  link:  /faq/how_can_i_determine_the_onset_of_an_effect
+
+- name:  How can I distribute a batch of jobs?
+  link:  /faq/how_can_i_distribute_a_batch_of_jobs
+
+- name:  How can I do time-frequency analysis on continuous data?
+  link:  /faq/how_can_i_do_time-frequency_analysis_on_continuous_data
+
+- name:  Which version of FieldTrip should I download?
+  link:  /faq/how_can_i_download_a_specific_version
+
+- name:  How can I extend the reading functions with a new dataformat?
+  link:  /faq/how_can_i_extend_the_reading_functions_with_a_new_dataformat
+
+- name:  How can I find out what eventvalues and eventtypes there are in my data?
+  link:  /faq/how_can_i_find_out_what_eventvalues_and_eventtypes_there_are_in_my_data
+
+- name:  How can I fine-tune my BEM volume conduction model?
+  link:  /faq/how_can_i_fine-tune_my_bem_volume_conduction_model
+
+- name:  How can I fix a corrupt CTF meg4 file?
+  link:  /faq/how_can_i_fix_a_corrupt_ctf_meg4_data_file
+
+- name:  How can I fix a corrupt CTF res4 header file?
+  link:  /faq/how_can_i_fix_a_corrupt_ctf_res4_header_file
+
+- name:  How can I import my own data format?
+  link:  /faq/how_can_i_import_my_own_dataformat
+
+- name:  How can I inspect the electrode impedances of my data?
+  link:  /faq/how_can_i_inspect_the_electrode_impedances_of_my_data
+
+- name:  How can I interpret the different types of padding in FieldTrip?
+  link:  /faq/how_can_i_interpret_the_different_types_of_padding_that_i_find_when_dealing_with_artifacts
+
+- name:  How can I keep track of changes to the code?
+  link:  /faq/how_can_i_keep_track_of_the_changes_to_the_code
+
+- name:  How can I map source locations onto an anatomical label in an atlas?
+  link:  /faq/how_can_i_map_source_locations_between_two_different_representations
+
+- name:  How can I merge two datasets that were acquired simultaneously with different amplifiers?
+  link:  /faq/how_can_i_merge_two_datasets_that_were_acquired_simultaneously_with_different_amplifiers
+
+- name:  How can I monitor a subject's head position during a MEG session?
+  link:  /faq/how_can_i_monitor_a_subject_s_head_position_during_a_meg_session
+
+- name:  How can I preprocess a dataset that is too large to fit into memory?
+  link:  /faq/how_can_i_preprocess_a_dataset_that_is_too_large_to_fit_into_memory
+
+- name:  How can I process continuous data without triggers?
+  link:  /faq/how_can_i_process_continuous_data_without_triggers
+
+- name:  How can I read all channels from an EDF file that contains multiple sampling rates?
+  link:  /faq/how_can_i_read_all_channels_from_an_edf_file_that_contains_multiple_sampling_rates
+
+- name:  How can I read corrupted (unsaved) CTF data?
+  link:  /faq/how_can_i_read_corrupted_unsaved_ctf_data
+
+- name:  How can I read EGI mff data without the JVM?
+  link:  /faq/how_can_i_read_egi_mff_data_without_the_jvm
+
+- name:  How to test an interaction effect using cluster-based permutation tests?
+  link:  /faq/how_can_i_test_an_interaction_effect_using_cluster-based_permutation_tests
+
+- name:  How can I test for correlations between neuronal data and quantitative stimulus and behavioral variables?
+  link:  /faq/how_can_i_test_for_correlations_between_neuronal_data_and_quantitative_stimulus_and_behavioural_variables
+
+- name:  What kind of cable do I need for a serial port connection between two computers?
+  link:  /faq/how_can_i_test_the_serial_port_connection_between_two_computers
+
+- name:  How can I test whether a behavioral measure is phasic?
+  link:  /faq/how_can_i_test_whether_a_behavioral_measure_is_phasic
+
+- name:  How can I transform trigger values from bits to decimal representation with a trialfun?
+  link:  /faq/how_can_i_transform_trigger_values_from_bits_to_decimal_representation_with_a_trialfun
+
+- name:  How can I use my MacBook Pro for stimulus presentation in the MEG lab?
+  link:  /faq/how_can_i_use_my_macbook_pro_for_stimulus_presentation_in_the_meg_lab
+
+- name:  How can I use the databrowser?
+  link:  /faq/how_can_i_use_the_databrowser
+
+- name:  How can I use the ivar, uvar, wvar and cvar options to precisely control the permutations?
+  link:  /faq/how_can_i_use_the_ivar_uvar_wvar_and_cvar_options_to_precisely_control_the_permutations
+
+- name:  How can I visualize a localspheres volume conductor model?
+  link:  /faq/how_can_i_visualize_a_localspheres_volume_conductor_model
+
+- name:  How can I visualize the different geometrical objects that are needed for forward and inverse computations?
+  link:  /faq/how_can_i_visualize_the_different_geometrical_objects_that_are_needed_for_forward_and_inverse_computations
+
+- name:  How can I visualize the neuromag head position indicator coils?
+  link:  /faq/how_can_i_visualize_the_neuromag_head_position_indicator_coils
+
+- name:  How to change the MRI orientation, the voxel size or the field-of-view?
+  link:  /faq/how_change_mri_orientation_size_fov
+
+- name:  How do I construct a layout file for the plotting functions?
+  link:  /faq/how_do_i_construct_a_layout_file_for_the_plotting_functions
+
+- name:  How do I install the OpenMEEG binaries
+  link:  /faq/how_do_i_install_the_openmeeg_binaries
+
+- name:  How do I prevent FieldTrip from printing the time and memory after each function call?
+  link:  /faq/how_do_i_prevent_fieldtrip_from_printing_the_time_and_memory_after_each_function_call
+
+- name:  How does a difference in trial numbers per condition affect my statistical test
+  link:  /faq/how_does_a_difference_in_trial_numbers_per_condition_affect_my_statistical_test
+
+- name:  How does ft_prepare_neighbours work?
+  link:  /faq/how_does_ft_prepare_neighbours_work
+
+- name:  How does the CTF higher-order gradiometer work?
+  link:  /faq/how_does_the_ctf_higher-order_gradiometer_work
+
+- name:  How does the filter padding in preprocessing work?
+  link:  /faq/how_does_the_filter_padding_in_preprocessing_work
+
+- name:  How fast is the FieldTrip buffer for realtime data streaming?
+  link:  /faq/how_fast_is_the_fieldtrip_buffer_for_realtime_data_streaming
+
+- name:  How is anatomical, functional or statistical "volume data" described?
+  link:  /faq/how_is_anatomical_functional_or_statistical_volume_data_described
+
+- name:  How is the segmentation defined?
+  link:  /faq/how_is_the_segmentation_defined
+
+- name:  How many lines of code does FieldTrip consist of?
+  link:  /faq/how_many_lines_of_code_does_fieldtrip_consist_of
+
+- name:  How many people are subscribed to the email discussion list?
+  link:  /faq/how_many_people_are_subscribed_to_the_email_discussion_list
+
+- name:  How NOT to interpret results from a cluster-based permutation test
+  link:  /faq/how_not_to_interpret_results_from_a_cluster-based_permutation_test
+
+- name:  How should I get started with the FieldTrip realtime buffer?
+  link:  /faq/how_should_i_get_started_with_the_fieldtrip_realtime_buffer
+
+- name:  How should I prepare for the upcoming FieldTrip workshop?
+  link:  /faq/how_should_i_prepare_for_the_upcoming_fieldtrip_workshop
+
+- name:  How should I refer to FieldTrip in my publication?
+  link:  /faq/how_should_i_refer_to_fieldtrip_in_my_publication
+
+- name:  How should I report the positions of the fiducial points on the head?
+  link:  /faq/how_should_i_report_the_positions_of_the_fiducial_points_on_the_head
+
+- name:  How should I share example data with the email list or developers?
+  link:  /faq/how_should_i_send_example_data_to_the_developers
+
+- name:  How to ask good questions to the community?
+  link:  /faq/how_to_ask_good_questions_to_the_community
+
+- name:  How to compile MATLAB code into stand-alone executables?
+  link:  /faq/how_to_compile_matlab_code_into_stand-alone_executables
+
+- name:  How to coregister an anatomical MRI with the gradiometer or electrode positions?
+  link:  /faq/how_to_coregister_an_anatomical_mri_with_the_gradiometer_or_electrode_positions
+
+- name:  How to get started with distributed computing using qsub?
+  link:  /faq/how_to_get_started_with_distributed_computing_using_qsub
+
+- name:  How to get started with the MATLAB distributed computing toolbox?
+  link:  /faq/how_to_get_started_with_the_matlab_distributed_computing_toolbox
+
+- name:  How to interpret the sign of the phase slope index?
+  link:  /faq/how_to_interpret_the_sign_of_the_phase_slope_index
+
+- name:  How to select the correct SPM toolbox?
+  link:  /faq/how_to_select_the_correct_spm_toolbox
+
+- name:  I am getting strange artifacts in figures that use opacity
+  link:  /faq/i_am_getting_strange_artifacts_in_figures_that_use_opacity
+
+- name:  I am having problems downloading
+  link:  /faq/i_am_having_problems_downloading
+
+- name:  I am having problems printing figures that use opacity
+  link:  /faq/i_am_having_problems_printing_figures_that_use_opacity
+
+- name:  I am having problems reading the CTF .hc headcoordinates file
+  link:  /faq/i_am_having_problems_reading_the_ctf_.hc_headcoordinates_file
+
+- name:  I am working at the Donders, should I also download FieldTrip?
+  link:  /faq/i_am_working_at_the_donders_should_i_also_download_fieldtrip
+
+- name:  I have problems reading in neuroscan .cnt files. How can I fix this?
+  link:  /faq/i_have_problems_reading_in_neuroscan_.cnt_files._how_can_i_fix_this
+
+- name:  I used ICA on my MEG data from before 2012 and now FieldTrip crashes, why is that?
+  link:  /faq/i_used_ica_on_my_meg_data_from_before_2012_and_now_fieldtrip_crashes_why_is_that
+
+- name:  I used to work with trl-matrices that have more than 3 columns. Why is this not supported anymore?
+  link:  /faq/i_used_to_work_with_trl-matrices_that_have_more_than_3_columns._why_is_this_not_supported_anymore
+
+- name:  In what way can frequency domain data be represented in FieldTrip?
+  link:  /faq/in_what_way_can_frequency_domain_data_be_represented_in_fieldtrip
+
+- name:  Installation and setting up the path
+  link:  /faq/installation
+
+- name:  Is it good or bad to have dipole locations outside of the brain for which the source reconstruction is computed?
+  link:  /faq/is_it_good_or_bad_to_have_dipole_locations_outside_of_the_brain_for_which_the_source_reconstruction_is_computed
+
+- name:  Is it important to have accurate measurements of electrode locations for EEG source reconstruction?
+  link:  /faq/is_it_important_to_have_accurate_measurements_of_electrode_locations_for_eeg_source_reconstruction
+
+- name:  Is it possible to keep track of trial-specific information in my analysis pipeline?
+  link:  /faq/is_it_possible_to_keep_track_of_trial-specific_information_in_my_fieldtrip_analysis_pipeline
+
+- name:  How can I compute inter-trial coherence?
+  link:  /faq/itc
+
+- name:  MATLAB complains about a missing or invalid mex file, what should I do?
+  link:  /faq/matlab_complains_about_a_missing_or_invalid_mex_file_what_should_i_do
+
+- name:  MATLAB does not see the functions in the "private" directory
+  link:  /faq/matlab_does_not_see_the_functions_in_the_private_directory
+
+- name:  Replacements for functions from MathWorks toolboxes
+  link:  /faq/matlab_replacements
+
+- name:  What are the MATLAB requirements for using FieldTrip?
+  link:  /faq/matlab_requirements
+
+- name:  MATLAB version 7.3 (2006b) crashes when I try to do ...
+  link:  /faq/matlab_version_7.3_2006b_crashes_when_i_try_to_do
+
+- name:  MATLAB complains that mexmaci64 cannot be opened because the developer cannot be verified
+  link:  /faq/mexmaci64_cannot_be_opened_because_the_developer_cannot_be_verified
+
+- name:  How does MTMCONVOL work?
+  link:  /faq/mtmconvol
+
+- name:  My MRI is upside down, is this a problem?
+  link:  /faq/my_mri_is_upside_down_is_this_a_problem
+
+- name:  Where can I find open access MEG/EEG data?
+  link:  /faq/open_data
+
+- name:  Reading is slow, can I write my raw data to a more efficient file format?
+  link:  /faq/reading_is_slow_can_i_write_my_raw_data_to_a_more_efficient_file_format
+
+- name:  How can I rename channels in my data structure?
+  link:  /faq/rename_channels
+
+- name:  What are the MATLAB and external requirements?
+  link:  /faq/requirements
+
+- name:  Do I need to resample my data, and if so, how is this to be done?
+  link:  /faq/resampling_lowpassfilter
+
+- name:  Should I rereference prior to or after ICA for artifact removal?
+  link:  /faq/should_I_rereference_prior_to_or_after_ica_for_artifact_removal
+
+- name:  Should I use t or F values for cluster-based permutation tests?
+  link:  /faq/should_I_use_t_or_F_values_for_cluster-based_permutation_tests
+
+- name:  Is it OK for vertices/dipoles to stick out of the volume conductor?
+  link:  /faq/sticking_out
+
+- name:  Should I use a Polhemus or a Structure Sensor to record electrode positions?
+  link:  /faq/structuresensor
+
+- name:  The databrowser crashes and destroys the whole MATLAB session, how can I resolve this?
+  link:  /faq/the_databrowser_crashes_and_destroys_the_whole_matlab_session_how_can_i_resolve_this
+
+- name:  What is meant by time-frequency trade off?
+  link:  /faq/timefreqtradeoff
+
+- name:  How can I check or decipher the sequence of triggers in my data?
+  link:  /faq/triggers
+
+- name:  What are the units of the data and of the derived results?
+  link:  /faq/units
+
+- name:  Are the FieldTrip lectures available on video?
+  link:  /faq/video
+
+- name:  What are the differences between the old and the new implementation of 'mtmconvol' in ft_freqanalyis?
+  link:  /faq/what_are_the_differences_between_the_old_and_the_new_implementation_of_mtmconvol_in_ft_freqanalyis
+
+- name:  What are the differences between the old and the new implementation of 'mtmftt' in ft_freqanalyis?
+  link:  /faq/what_are_the_differences_between_the_old_and_the_new_implementation_of_mtmfft_in_ft_freqanalyis
+
+- name:  What are the differences between the old and the new implementation of 'wavelet' (formerly 'wltconvol') in ft_freqanalyis?
+  link:  /faq/what_are_the_differences_between_the_old_and_the_new_implementation_of_wavelet_formerly_wltconvol_in_ft_freqanalyis
+
+- name:  What are the different approaches I can take for distributed computing?
+  link:  /faq/what_are_the_different_approaches_i_can_take_for_distributed_computing
+
+- name:  What are the different Neuromag/Elekta/Megin and Yokogawa layouts good for?
+  link:  /faq/what_are_the_different_neuromag_and_yokogawa_layouts_good_for
+
+- name:  What convention is used to define absolute phase in 'mtmconvol', 'wavelet' and 'mtmfft'?
+  link:  /faq/what_convention_is_used_to_define_absolute_phase_in_mtmconvol_wavelet_and_mtmfft
+
+- name:  What does a typical call to a FieldTrip function look like?
+  link:  /faq/what_does_a_typical_call_to_a_fieldtrip_function_look_like
+
+- name:  What does "padding not sufficient for requested frequency resolution" mean?
+  link:  /faq/what_does_padding_not_sufficient_for_requested_frequency_resolution_mean
+
+- name:  What is a good way to save images for later processing in other software?
+  link:  /faq/what_is_a_good_way_to_save_images_for_later_processing_in_other_software
+
+- name:  What is the conductivity of the brain, CSF, skull and skin tissue?
+  link:  /faq/what_is_the_conductivity_of_the_brain_csf_skull_and_skin_tissue
+
+- name:  What is the difference between coherence and coherency?
+  link:  /faq/what_is_the_difference_between_coherence_and_coherency
+
+- name:  What is the format of the layout file which is used for plotting?
+  link:  /faq/what_is_the_format_of_the_layout_file_which_is_used_for_plotting
+
+- name:  What is the idea behind statistical inference at the second-level?
+  link:  /faq/what_is_the_idea_behind_statistical_inference_at_the_second-level
+
+- name:  What is the plotting convention for anatomical MRIs?
+  link:  /faq/what_is_the_plotting_convention_for_anatomical_mris
+
+- name:  What is the relation between "events" (such as triggers) and "trials"?
+  link:  /faq/what_is_the_relation_between_events_such_as_triggers_and_trials
+
+- name:  What kind of filters can I apply to my data?
+  link:  /faq/what_kind_of_filters_can_i_apply_to_my_data
+
+- name:  What kind of volume conduction models of the head (head models) are implemented?
+  link:  /faq/what_kind_of_volume_conduction_models_are_implemented
+
+- name:  Where can I find the dipoli command-line executable?
+  link:  /faq/where_can_i_find_the_dipoli_command-line_executable
+
+- name:  Which version of FieldTrip should I download?
+  link:  /faq/which_version_of_fieldtrip_should_i_download
+
+- name:  Why am I not allowed to post to the discussion list?
+  link:  /faq/why_am_i_not_allowed_to_post_to_the_discussion_list
+
+- name:  Why am I not getting integer frequencies?
+  link:  /faq/why_am_i_not_getting_exact_integer_frequencies
+
+- name:  Why am I not receiving emails from the discussion list?
+  link:  /faq/why_am_i_not_receiving_emails_from_the_discussion_list
+
+- name:  Why am I receiving warnings about too many bouncing emails?
+  link:  /faq/why_am_i_receiving_warnings_about_too_many_bouncing_emails
+
+- name:  Why are so many of the interesting functions in the private directories?
+  link:  /faq/why_are_so_many_of_the_interesting_functions_in_the_private_directories
+
+- name:  Why are the fileio functions stateless, does the fseek not make them very slow?
+  link:  /faq/why_are_the_fileio_functions_stateless_does_the_fseek_not_make_them_very_slow
+
+- name:  Why are there multiple neighbour templates for the Neuromag306 system?
+  link:  /faq/why_are_there_multiple_neighbour_templates_for_the_neuromag306_system
+
+- name:  Why does my anatomical MRI show upside-down when plotting it with ft_sourceplot?
+  link:  /faq/why_does_my_anatomical_mri_show_upside-down_when_plotting_it_with_ft_sourceplot
+
+- name:  Why does my EEG headmodel look funny?
+  link:  /faq/why_does_my_eegheadmodel_look_funny
+
+- name:  Why does my ICA output contain complex numbers?
+  link:  /faq/why_does_my_ica_output_contain_complex_numbers
+
+- name:  Why does my output.freq not match my cfg.foi when using 'mtmconvol' in ft_freqanalyis?
+  link:  /faq/why_does_my_output.freq_not_match_my_cfg.foi_when_using_mtmconvol_in_ft_freqanalyis
+
+- name:  Why does my output.freq not match my cfg.foi when using 'mtmfft' in ft_freqanalyis
+  link:  /faq/why_does_my_output.freq_not_match_my_cfg.foi_when_using_mtmfft_in_ft_freqanalyis
+
+- name:  Why does my output.freq not match my cfg.foi when using 'wavelet' (formerly 'wltconvol') in ft_freqanalyis?
+  link:  /faq/why_does_my_output.freq_not_match_my_cfg.foi_when_using_wavelet_formerly_wltconvol_in_ft_freqanalyis
+
+- name:  Why does my TFR contain NaNs?
+  link:  /faq/why_does_my_tfr_contain_nans
+
+- name:  Why does my TFR look strange (part I, demeaning)?
+  link:  /faq/why_does_my_tfr_look_strange
+
+- name:  Why does my TFR look strange (part II, detrending)?
+  link:  /faq/why_does_my_tfr_look_strange_part_ii
+
+- name:  Why is FieldTrip developed separately from EEGLAB?
+  link:  /faq/why_is_fieldtrip_developed_separately_from_eeglab
+
+- name:  Why was FieldTrip maintained in SVN and not in Git?
+  link:  /faq/why_is_fieldtrip_maintained_in_svn_and_not_in_git
+
+- name:  Why is my message rejected from the email discussion list?
+  link:  /faq/why_is_my_message_rejected_from_the_email_discussion_list
+
+- name:  Why is the source model deformed or incorrectly aligned after warping template?
+  link:  /faq/why_is_the_source_model_deformed_or_incorrectly_aligned_after_warping_template
+
+- name:  Why is there a residual 50Hz line-noise component after applying a DFT filter?
+  link:  /faq/why_is_there_a_residual_50hz_line-noise_component_after_applying_a_dft_filter
+
+- name:  Why is there a rim around the brain for which the source reconstruction is not computed?
+  link:  /faq/why_is_there_a_rim_around_the_brain_for_which_the_source_reconstruction_is_not_computed
+
+- name:  Why is the largest peak in the spectrum at the frequency which is 1/segment length?
+  link:  /faq/why_largest_peak_spectrum
+
+- name:  Why should I use an average reference for EEG source reconstruction?
+  link:  /faq/why_should_i_use_an_average_reference_for_eeg_source_reconstruction
+
+- name:  Why should I use the cfg.correcttail option when using statistics_montecarlo?
+  link:  /faq/why_should_i_use_the_cfg.correcttail_option_when_using_statistics_montecarlo
+
diff --git a/_data/category/getting_started.yml b/_data/category/getting_started.yml
new file mode 100644
index 000000000..44ed9e5cb
--- /dev/null
+++ b/_data/category/getting_started.yml
@@ -0,0 +1,159 @@
+- name:  Getting Started
+  link:  /getting_started
+
+- name:  Getting started with 20%, 10% and 5% electrode arrangements
+  link:  /getting_started/1020
+
+- name:  Getting started with animal electrophysiology data, including spikes
+  link:  /getting_started/animal
+
+- name:  Getting started with ANT-Neuro, ASA and EEProbe data
+  link:  /getting_started/antneuro
+
+- name:  Getting started with AnyWave
+  link:  /getting_started/anywave
+
+- name:  Getting started with Artinis NIRS data
+  link:  /getting_started/artinis
+
+- name:  Getting started with audio data
+  link:  /getting_started/audio
+
+- name:  Getting started with ABM's B-Alert EEG data
+  link:  /getting_started/b_alert
+
+- name:  Getting started with BabySQUID data
+  link:  /getting_started/babysquid
+
+- name:  Getting started with BESA data
+  link:  /getting_started/besa
+
+- name:  Getting started with BIDS
+  link:  /getting_started/bids
+
+- name:  Getting started with BioImage Suite
+  link:  /getting_started/bioimage
+
+- name:  Getting started with Biosemi BDF data
+  link:  /getting_started/biosemi
+
+- name:  Getting started with Blackrock data
+  link:  /getting_started/blackrock
+
+- name:  Getting started with BrainVision Analyzer and Easycap
+  link:  /getting_started/brainvision
+
+- name:  Getting started with BTi/4D data
+  link:  /getting_started/bti
+
+- name:  Getting started with Cerca OPM data
+  link:  /getting_started/cerca
+
+- name:  Getting started with CTF data
+  link:  /getting_started/ctf
+
+- name:  Getting started with Cyberkinetics data
+  link:  /getting_started/cyberkinetics
+
+- name:  Getting started with EDF (European Data Format) data
+  link:  /getting_started/edf
+
+- name:  Getting started with EEGLAB
+  link:  /getting_started/eeglab
+
+- name:  Getting started with EGI/Philips/Magstim data
+  link:  /getting_started/egi
+
+- name:  Getting started with SR-Research EyeLink eye-tracker data
+  link:  /getting_started/eyelink
+
+- name:  Getting started with FieldLine OPM data
+  link:  /getting_started/fieldline
+
+- name:  Getting started with fMRI timeseries data
+  link:  /getting_started/fmri
+
+- name:  Getting started with Hitachi NIRS data
+  link:  /getting_started/hitachi
+
+- name:  Getting started with Homer
+  link:  /getting_started/homer
+
+- name:  Getting started with human ECoG data
+  link:  /getting_started/human_ecog
+
+- name:  Getting started with LIMO MEEG
+  link:  /getting_started/limo
+
+- name:  Getting started with LORETA
+  link:  /getting_started/loreta
+
+- name:  Getting started with MeshLab
+  link:  /getting_started/meshlab
+
+- name:  Getting started with MNE(-python)
+  link:  /getting_started/mne
+
+- name:  Getting started with Neuralynx data
+  link:  /getting_started/neuralynx
+
+- name:  Getting started with Neuralynx data recorded at the Donders Institute
+  link:  /getting_started/neuralynx_fcdc
+
+- name:  Getting started with Neuromag/Elekta/Megin data
+  link:  /getting_started/neuromag
+
+- name:  Getting started with Nicolet data
+  link:  /getting_started/nicolet
+
+- name:  Getting started with NIRx NIRS data
+  link:  /getting_started/nirx
+
+- name:  Getting started with Neurodata Without Borders (NWB) data
+  link:  /getting_started/nwb
+
+- name:  Getting started with OPM data recorded at the FIL
+  link:  /getting_started/opm_fil
+
+- name:  Getting started with ParaView
+  link:  /getting_started/paraview
+
+- name:  Getting started with Plexon data
+  link:  /getting_started/plexon
+
+- name:  Getting started with real-time analysis for BCI/neurofeedback
+  link:  /getting_started/realtime
+
+- name:  Getting started with real-time head localization in MEG
+  link:  /getting_started/realtime_headlocalizer
+
+- name:  Getting started with Ricoh data
+  link:  /getting_started/ricoh
+
+- name:  Getting started with Seg3D
+  link:  /getting_started/seg3d
+
+- name:  Getting started with Shimadzu NIRS data
+  link:  /getting_started/shimadzu
+
+- name:  Getting started with SimNIBS
+  link:  /getting_started/simnibs
+
+- name:  Getting started with SNIRF data
+  link:  /getting_started/snirf
+
+- name:  Getting started with SPM
+  link:  /getting_started/spm
+
+- name:  Getting started with TMSi data
+  link:  /getting_started/tmsi
+
+- name:  Getting started with video data
+  link:  /getting_started/video
+
+- name:  Getting started with XSens motion capture data
+  link:  /getting_started/xsens
+
+- name:  Getting started with Yokogawa data
+  link:  /getting_started/yokogawa
+
diff --git a/_data/category/tutorial.yml b/_data/category/tutorial.yml
new file mode 100644
index 000000000..029a0eca7
--- /dev/null
+++ b/_data/category/tutorial.yml
@@ -0,0 +1,159 @@
+- name:  Overview of all tutorials
+  link:  /tutorial
+
+- name:  Introduction on dealing with artifacts
+  link:  /tutorial/artifacts
+
+- name:  Automatic artifact rejection
+  link:  /tutorial/automatic_artifact_rejection
+
+- name:  Localizing oscillatory sources using beamformer techniques
+  link:  /tutorial/beamformer
+
+- name:  Localizing visual gamma and cortico-muscular coherence using DICS
+  link:  /tutorial/beamformingextended
+
+- name:  Cluster-based permutation tests on time-frequency data
+  link:  /tutorial/cluster_permutation_freq
+
+- name:  Cluster-based permutation tests on event-related fields
+  link:  /tutorial/cluster_permutation_timelock
+
+- name:  Analysis of corticomuscular coherence
+  link:  /tutorial/coherence
+
+- name:  Analysis of sensor- and source-level connectivity
+  link:  /tutorial/connectivity
+
+- name:  Extended analysis of sensor- and source-level connectivity
+  link:  /tutorial/connectivityextended
+
+- name:  Preprocessing - Reading continuous EEG and MEG data
+  link:  /tutorial/continuous
+
+- name:  Coregistration of Optically Pumped Magnetometer (OPM) data
+  link:  /tutorial/coregistration_opm
+
+- name:  Speeding up your analysis using distributed computing with parfor
+  link:  /tutorial/distributedcomputing_parfor
+
+- name:  Speeding up your analysis using distributed computing with qsub
+  link:  /tutorial/distributedcomputing_qsub
+
+- name:  Localizing electrodes using a 3D-scanner
+  link:  /tutorial/electrode
+
+- name:  Virtual channel analysis of epilepsy MEG data
+  link:  /tutorial/epilepsy
+
+- name:  Event-related averaging and MEG planar gradient
+  link:  /tutorial/eventrelatedaveraging
+
+- name:  Parametric and non-parametric statistics on event-related fields
+  link:  /tutorial/eventrelatedstatistics
+
+- name:  Creating a BEM volume conduction model of the head for source reconstruction of EEG data
+  link:  /tutorial/headmodel_eeg_bem
+
+- name:  Creating a FEM volume conduction model of the head for source reconstruction of EEG data
+  link:  /tutorial/headmodel_eeg_fem
+
+- name:  Creating a volume conduction model of the head for source reconstruction of MEG data
+  link:  /tutorial/headmodel_meg
+
+- name:  Analysis of human ECoG and sEEG recordings
+  link:  /tutorial/human_ecog
+
+- name:  Cleaning artifacts using ICA
+  link:  /tutorial/ica_artifact_cleaning
+
+- name:  Introduction to the FieldTrip toolbox
+  link:  /tutorial/introduction
+
+- name:  Specifying the channel layout for plotting
+  link:  /tutorial/layout
+
+- name:  Making a memory efficient analysis pipeline
+  link:  /tutorial/memory
+
+- name:  Source reconstruction of event-related fields using minimum-norm estimation
+  link:  /tutorial/minimumnormestimate
+
+- name:  Analysis of monkey ECoG recordings
+  link:  /tutorial/monkey_ecog
+
+- name:  Channel and source analysis of mouse EEG
+  link:  /tutorial/mouse_eeg
+
+- name:  Classification of event-related MEG data using MVPA-Light
+  link:  /tutorial/mvpa_light
+
+- name:  Whole brain connectivity and network analysis
+  link:  /tutorial/networkanalysis
+
+- name:  Whole brain connectivity and network analysis
+  link:  /tutorial/networkanalysis_eeg
+
+- name:  Whole brain connectivity and network analysis
+  link:  /tutorial/networkanalysis_old
+
+- name:  Preprocessing and averaging of multi-channel NIRS data
+  link:  /tutorial/nirs_multichannel
+
+- name:  Preprocessing and averaging of single-channel NIRS data
+  link:  /tutorial/nirs_singlechannel
+
+- name:  Plotting data at the channel and source level
+  link:  /tutorial/plotting
+
+- name:  Preprocessing - Segmenting and reading trial-based EEG and MEG data
+  link:  /tutorial/preprocessing
+
+- name:  Preprocessing of EEG data and computing ERPs
+  link:  /tutorial/preprocessing_erp
+
+- name:  Preprocessing of Optically Pumped Magnetometer (OPM) data
+  link:  /tutorial/preprocessing_opm
+
+- name:  Creating a clean analysis pipeline
+  link:  /tutorial/scripting
+
+- name:  Sensor-level ERF, TFR and connectivity analyses
+  link:  /tutorial/sensor_analysis
+
+- name:  Extracting the brain state and events from continuous sleep EEG
+  link:  /tutorial/sleep
+
+- name:  Creating a source model for source reconstruction of MEG or EEG data
+  link:  /tutorial/sourcemodel
+
+- name:  Preprocessing and analysis of spike-train data
+  link:  /tutorial/spike
+
+- name:  Preprocessing and analysis of spike and local field potential data
+  link:  /tutorial/spikefield
+
+- name:  Time-frequency analysis using Hanning window, multitapers and wavelets
+  link:  /tutorial/timefrequencyanalysis
+
+- name:  Dealing with TMS-EEG datasets
+  link:  /tutorial/tms-eeg
+
+- name:  Visual or manual artifact rejection
+  link:  /tutorial/visual_artifact_rejection
+
+- name:  Beamforming oscillatory responses in combined MEG/EEG data
+  link:  /workshop/natmeg2014/beamforming
+
+- name:  Dipole fitting of combined MEG/EEG data
+  link:  /workshop/natmeg2014/dipolefitting
+
+- name:  Preprocessing and event-related activity in combined MEG/EEG data
+  link:  /workshop/natmeg2014/preprocessing
+
+- name:  Statistical analysis and multiple comparison correction for combined MEG/EEG data
+  link:  /workshop/natmeg2014/statistics
+
+- name:  Time-frequency analysis of combined MEG/EEG data
+  link:  /workshop/natmeg2014/timefrequency
+
diff --git a/_includes/category b/_includes/category
new file mode 100644
index 000000000..de97b868b
--- /dev/null
+++ b/_includes/category
@@ -0,0 +1,7 @@
+{% if page.category != nill and page.category != "" %}
+  <p>
+  Category: <a href="/category/{{ page.category }}/">{{ page.category }}</a>
+  </p>
+{% else %}
+  &nbsp;
+{% endif %}
diff --git a/_includes/right b/_includes/right
index 21d207519..e658d9233 100644
--- a/_includes/right
+++ b/_includes/right
@@ -4,6 +4,8 @@
   {{ content | toc_only }}
 {% endif %}
 
+{% include category %}
+
 {% include tags %}
 
 </div>
diff --git a/_includes/tags b/_includes/tags
index eb51ffbbb..148de8a38 100644
--- a/_includes/tags
+++ b/_includes/tags
@@ -1,8 +1,10 @@
 {% if page.tags != nill and page.tags != "" %}
+  <p>
   Tags:
   {% for t in page.tags %}
     <a href="/tag/{{ t }}/">{{ t }}</a>
   {% endfor %}
+  </p>
 {% else %}
   &nbsp;
 {% endif %}
diff --git a/_layouts/category.html b/_layouts/category.html
new file mode 100644
index 000000000..b8af9ec9b
--- /dev/null
+++ b/_layouts/category.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    {% include head %}
+    {% include favicon %}
+    {% include plausible %}
+  </head>
+
+  <body>
+    {% include navigation %}
+
+    <div class="container">
+     <div class="row">
+
+        <div class="col-sm-1">
+          {% include left %}
+        </div>
+        <div class="col-sm-8 main-page-content">
+          <h1>Pages in the category "{{ page.category }}"</h1>
+          {% if site.data.category[page.category] != nill %}
+            <ul>
+              {% assign list = site.data.category[page.category] | sort_natural: "name" %}
+              {% for item in list %}
+                <li><a href="{{ item.link }}" {% if page.url == item.link %}style="color: red;"{% endif %}>
+                  {{ item.name }}
+                </a></li>
+              {% endfor %}
+            </ul>
+          {% endif %}
+        </div>
+        <div class="col-sm-3">
+          {% include right %}
+        </div>
+      </div>
+    </div>
+
+    {% include footer %}
+  </body>
+</html>
diff --git a/_scripts/categories.sh b/_scripts/categories.sh
new file mode 100755
index 000000000..ad9c15a0f
--- /dev/null
+++ b/_scripts/categories.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+#
+# This script parses all pages for categories and creates an overview page for each category.
+# It results in an update of _data/category/*.yml and of category/*.md
+#
+# Following execution of this script, you should commmit the category pages that have
+# been changed.
+
+if [[ ! -e _config.yml ]] ; then echo ERROR this should be executed in the toplevel directory ;  exit 1 ; fi
+
+# these will be recreated
+rm       category/*.md
+rm _data/category/*.yml
+
+CATEGORYFILE=`mktemp`
+
+# this constructs a list of all categories
+find . -name \*.md | xargs grep -h '^category:' | cut -d : -f 2 | tr -d '[] ' | tr , '\n' | sort -u > $CATEGORYFILE
+
+# this constructs a list of pages that belong to a certain category
+for CATEGORY in `cat ${CATEGORYFILE}` ; do
+  FILELIST=`find . -name \*.md | xargs grep -wl ^category:.*${CATEGORY} | sort | uniq `
+  for FILE in ${FILELIST}; do
+    NAME=`grep title: $FILE | cut -d : -f 2 | cut -b 2-`
+    LINK=${FILE:1:$((${#FILE}-4))}
+    echo '- name: ' $NAME  >> _data/category/$CATEGORY.yml
+    echo '  link: ' $LINK  >> _data/category/$CATEGORY.yml
+    echo ''                >> _data/category/$CATEGORY.yml
+  done
+done
+
+# this constructs an overview page for each category
+for CATEGORY in `cat ${CATEGORYFILE}` ; do
+  echo '---'               >  category/$CATEGORY.md
+  echo layout: category    >> category/$CATEGORY.md
+  echo category: $CATEGORY >> category/$CATEGORY.md
+  echo '---'               >> category/$CATEGORY.md
+done
diff --git a/_scripts/tags.sh b/_scripts/tags.sh
index 168dd259d..bbc140d00 100755
--- a/_scripts/tags.sh
+++ b/_scripts/tags.sh
@@ -17,14 +17,6 @@ TAGFILE=`mktemp`
 # this constructs a list of all tags
 find . -name \*.md | xargs grep -h '^tags:' | cut -d : -f 2 | tr -d '[] ' | tr , '\n' | sort -u > $TAGFILE
 
-# this constructs an overview page for each tag
-for TAG in `cat ${TAGFILE}` ; do
-  echo '---'        >  tag/$TAG.md
-  echo layout: tag  >> tag/$TAG.md
-  echo tag: $TAG    >> tag/$TAG.md
-  echo '---'        >> tag/$TAG.md
-done
-
 # this constructs a list of pages that have a certain tag
 for TAG in `cat ${TAGFILE}` ; do
   FILELIST=`find . -name \*.md | xargs grep -wl ^tags:.*${TAG} | sort | uniq `
@@ -36,3 +28,11 @@ for TAG in `cat ${TAGFILE}` ; do
     echo ''                >> _data/tag/$TAG.yml
   done
 done
+
+# this constructs an overview page for each tag
+for TAG in `cat ${TAGFILE}` ; do
+  echo '---'        >  tag/$TAG.md
+  echo layout: tag  >> tag/$TAG.md
+  echo tag: $TAG    >> tag/$TAG.md
+  echo '---'        >> tag/$TAG.md
+done
diff --git a/category/example.md b/category/example.md
new file mode 100644
index 000000000..7032c1e2c
--- /dev/null
+++ b/category/example.md
@@ -0,0 +1,4 @@
+---
+layout: category
+category: example
+---
diff --git a/category/faq.md b/category/faq.md
new file mode 100644
index 000000000..127701d1f
--- /dev/null
+++ b/category/faq.md
@@ -0,0 +1,4 @@
+---
+layout: category
+category: faq
+---
diff --git a/category/getting_started.md b/category/getting_started.md
new file mode 100644
index 000000000..ea4aa3a21
--- /dev/null
+++ b/category/getting_started.md
@@ -0,0 +1,4 @@
+---
+layout: category
+category: getting_started
+---
diff --git a/category/tutorial.md b/category/tutorial.md
new file mode 100644
index 000000000..e5d0f06f7
--- /dev/null
+++ b/category/tutorial.md
@@ -0,0 +1,4 @@
+---
+layout: category
+category: tutorial
+---
diff --git a/example.md b/example.md
index 4af20c9f1..e25ae896f 100644
--- a/example.md
+++ b/example.md
@@ -1,6 +1,6 @@
 ---
 title: Example MATLAB scripts
-tags: [example]
+category: example
 ---
 
 # Example MATLAB scripts
diff --git a/faq.md b/faq.md
index 1bd672f04..89ee2bdb0 100644
--- a/faq.md
+++ b/faq.md
@@ -1,6 +1,6 @@
 ---
 title: Frequently Asked Questions
-tags: [faq]
+category: faq
 ---
 
 # Frequently Asked Questions
diff --git a/getting_started.md b/getting_started.md
index 0f11394d9..169b7cb70 100644
--- a/getting_started.md
+++ b/getting_started.md
@@ -1,5 +1,6 @@
 ---
 title: Getting Started
+category: getting_started
 ---
 
 # Getting Started
diff --git a/tutorial.md b/tutorial.md
index 93c9e7c86..759241054 100644
--- a/tutorial.md
+++ b/tutorial.md
@@ -1,6 +1,6 @@
 ---
 title: Overview of all tutorials
-tags: [tutorial]
+category: tutorial
 ---
 
 # Overview of all tutorials