Open Education Resource Repositories

Open Textbook Library

Open educational resources provided by the Open Education Network.


Peer reviewed open access textbooks.


One of the bigger and better know OER repositories.

Directory of Open Access Books

Large repository of academic and peer reviewed books.

OER Commons

OERs for all levels of education.

Teaching Commons

Open access materials provided by leading colleges and universities.

Other Open Access Resources

  • MOM – Federated search engine of popular OER repositories. Provided by George Mason University. Will include results for all levels of education, not just higher.
  • OASIS – Openly Available Sources Integrated Search
  • CORA – Community of Online Research Assignments. Resources for faculty and librarians.
  • Smithsonian Open Access – Search Smithsonian image library.
  • Unsplash – Large collection (over 3 million) of freely usable images.
  • New York Times Public Domain Images – Free images from the NYT’s archives.
  • Project Gutenberg – Public domain books.
  • CCEL – Public domain classic Christian books.
  • Wikimedia Commons – Freely usable media files from Wikipedia articles.