diff --git a/teach_online/acknowledgements.md b/teach_online/acknowledgements.md
index 47c7b70..f3af968 100644
--- a/teach_online/acknowledgements.md
+++ b/teach_online/acknowledgements.md
@@ -27,3 +27,7 @@ This online training module was developed with the support of a
 awarded to me (PI) and Karen Flammer (co-PI) by the
 [University of California Office of the President (UCOP)](https://www.ucop.edu/):
 *An Online Training Module to Provide Instructors Guidance in Developing and Offering Fully Online and Hybrid Courses*.
+
+```{bibliography}
+:style: unsrt
+```
diff --git a/teach_online/modalities.md b/teach_online/modalities.md
index c0a4c06..dd157f1 100644
--- a/teach_online/modalities.md
+++ b/teach_online/modalities.md
@@ -168,7 +168,3 @@ Small-Group Discussion
   In-class discussions among small groups of students (not necessarily pre-assigned),
   potentially facilitated by members of the instructional staff {cite:p}`cohen_restructuring_1994`.
 ```
-
-```{bibliography}
-:style: unsrt
-```
diff --git a/teach_online/ref.bib b/teach_online/ref.bib
index cd750f2..3fe015d 100644
--- a/teach_online/ref.bib
+++ b/teach_online/ref.bib
@@ -228,3 +228,54 @@ @article{jenkins_textbook_2020
 	pages = {3},
 	file = {Full Text:C\:\\Users\\a1moshir\\Zotero\\storage\\SG9US6ER\\Jenkins et al. - 2020 - Textbook Broke Textbook Affordability as a Social.pdf:application/pdf},
 }
+
+@incollection{tatnall_learning_2020,
+	address = {Cham},
+	title = {Learning {Management} {Systems}, {An} {Overview}},
+	isbn = {978-3-030-10575-4 978-3-030-10576-1},
+	url = {http://link.springer.com/10.1007/978-3-030-10576-1_248},
+	language = {en},
+	urldate = {2024-04-07},
+	booktitle = {Encyclopedia of {Education} and {Information} {Technologies}},
+	publisher = {Springer International Publishing},
+	author = {Turnbull, Darren and Chugh, Ritesh and Luck, Jo},
+	editor = {Tatnall, Arthur},
+	year = {2020},
+	doi = {10.1007/978-3-030-10576-1_248},
+	pages = {1052--1058},
+	file = {Turnbull et al. - 2020 - Learning Management Systems, An Overview.pdf:C\:\\Users\\a1moshir\\Zotero\\storage\\U4TAYELU\\Turnbull et al. - 2020 - Learning Management Systems, An Overview.pdf:application/pdf},
+}
+
+@article{conole_fostering_2012,
+	title = {Fostering social inclusion through open educational resources ({OER})},
+	volume = {33},
+	issn = {0158-7919, 1475-0198},
+	url = {http://www.tandfonline.com/doi/abs/10.1080/01587919.2012.700563},
+	doi = {10.1080/01587919.2012.700563},
+	language = {en},
+	number = {2},
+	urldate = {2024-04-07},
+	journal = {Distance Education},
+	author = {Conole, Gráinne},
+	month = aug,
+	year = {2012},
+	pages = {131--134},
+	file = {Conole - 2012 - Fostering social inclusion through open educationa.pdf:C\:\\Users\\a1moshir\\Zotero\\storage\\7RNNDWP5\\Conole - 2012 - Fostering social inclusion through open educationa.pdf:application/pdf},
+}
+
+@article{nipa_assessment_2020,
+	title = {Assessment of open educational resources ({OER}) developed in interactive learning environments},
+	volume = {25},
+	issn = {1360-2357, 1573-7608},
+	url = {http://link.springer.com/10.1007/s10639-019-10081-7},
+	doi = {10.1007/s10639-019-10081-7},
+	language = {en},
+	number = {4},
+	urldate = {2024-04-07},
+	journal = {Education and Information Technologies},
+	author = {Nipa, Thahomina Jahan and Kermanshachi, Sharareh},
+	month = jul,
+	year = {2020},
+	pages = {2521--2547},
+	file = {Nipa and Kermanshachi - 2020 - Assessment of open educational resources (OER) dev.pdf:C\:\\Users\\a1moshir\\Zotero\\storage\\LVZ3WMP8\\Nipa and Kermanshachi - 2020 - Assessment of open educational resources (OER) dev.pdf:application/pdf},
+}
diff --git a/teach_online/spicy.md b/teach_online/spicy.md
index d7defe3..481512c 100644
--- a/teach_online/spicy.md
+++ b/teach_online/spicy.md
@@ -69,8 +69,19 @@ but I was compensated very fairly for my labor
 I understand that there are challenges with finding funding sources depending on where you are,
 and I recognize my privilege of being at a well-supported R1 university to be able to even pursue these funding opportunities,
 but I highly encourage all academics to try to find funding sources they can apply for / utilize
-to support the development of their instructional materials so that they can have the financial freedom to make them available to the general public for free.
+to support the development of their instructional materials
+so that they can have the financial freedom to make them available to the general public for free.
+And if you are someone who simply *uses* an expensive textbook,
+I encourage you to see if there exists an {term}`Open Educational Resource (OER)`
+that could be a reasonable substitute {cite:p}`nipa_assessment_2020,conole_fostering_2012`
 
-```{bibliography}
-:style: unsrt
+## Glossary
+
+```{glossary}
+Learning Management System (LMS)
+  A software application for the administration, documentation, tracking, reporting, automation,
+  and delivery of educational courses/materials {cite:p}`tatnall_learning_2020`.
+Open Educational Resource (OER)
+  A publicly available educational resource that has been released under a license that permits
+  its free use and repurposing by others.
 ```