If the subject you are looking for is not listed above try checking the following guides:
- BCOopen Campus Discipline Guide - lists a range of open educational resources organized by discipline. This guide is updated as new resources are identified.
- McMaster University’s OER by Discipline Guide - broad range of open textbooks and OER organized by academic programs available at McMaster University
- BMCC-CUNY Subjects Guide - open and affordable textbook program
- OERI (ASCCC Open Educational Resources Initiative) - Subject resources Full course content included with syllabi
- OASIS - Search engine developed by SUNY to make the discovery of open content easier.
- Michigan Colleges Online subject list
- UConn Library open textbooks by subject guide.
- UOklahoma Libraries discipline guide