Tools

• https://datasource.kapsarc.org/explore/?sort=modified&refine.country=World

Lists

• https://www.quora.com/Where-can-I-find-large-datasets-open-to-the-public
• https://blog.bigml.com/list-of-public-data-sources-fit-for-machine-learning/

Unexplored public APIs:

• https://github.com/toddmotto/public-apis
• https://github.com/abhishekbanthia/Public-APIs

Public suggestions:

• https://catalog.data.gov/organization/nasa-gov
• http://data.gov/
• http://www.census.gov/data.html
• http://www.socrata.com/discover/
• http://open-data.europa.eu/en/data/
• http://data.gov.uk/
• http://www.data.gc.ca/
• http://opengovernmentdata.org/data/
• https://www.cia.gov/library/publications/the-world-factbook/
• https://www.healthdata.gov/
• http://www.forbes.com/health/
• http://www.hscic.gov.uk/home
• http://www.unicef.org/statistics/
• http://www.who.int/en/
• http://aws.amazon.com/datasets
• https://developers.facebook.com/docs/graph-api
• http://face.com/
• http://www.stat.ucla.edu/data/
• http://datamarket.com/
• http://www.google.com/publicdata/directory
• http://www.junar.com/
• http://buzzdata.com/content/
• http://www.gapminder.org/data/
• http://www.google.com/trends/explore
• https://www.google.com/finance
• http://storage.googleapis.com/books/ngrams/books/datasetsv2.html
• http://www.ncdc.noaa.gov/data-access/quick-links#loc-clim
• http://wiki.dbpedia.org/
• http://developer.nytimes.com/docs
• http://www.freebase.com/
• http://aws.amazon.com/datasets/6468931156960467
• http://archive.ics.uci.edu/ml/index.html
• http://fisher.osu.edu/fin/fdf/osudata.htm
• http://www.pewinternet.org/datasets/
• http://www.broadinstitute.org/cgi-bin/cancer/datasets.cgi ...
• http://www.meetup.com/meetup_api/docs/stream/2/rsvps/#websockets