General OER Repositories

There are numerous online platforms that host extensive OER collections.

OER Metafinder
The Mason OER Metafinder helps you find Open Educational Resources by launching a real-time, simultaneous search across different repositories of open educational materials.
Multidisciplinairy and multi-format repositories

Merlot
Provides access to curated online learning and support materials and content creation tools, led by an international community of educators, learners and researchers.

OER Commons
A public digital library of open educational resources. Explore, create, and collaborate with educators around the world to improve curriculum.

OpenStax College
Free and flexible textbooks and resources.

SURF edusources
The platform for digital (open) educational resources for Dutch education. Note: the platform is still under development and a growing number of HE institutes are building collections on edusources.
If you want to share your educational material, you can go to the information on publishing OER.

CSU Online Course material finder
Find FREE Online Course Materials Related to a book.

Open textbooks
BC Open Textbooks
A collection of open textbooks collected by British Columbia University

LibreTexts
A non-profit organisation committed to freeing the textbook from the limitations and costs of traditional textbooks.

Open Textbooks Library
Licensed by authors and publishers to be freely used and adapted. Download, edit and distribute them at no cost.

Domain specific OER Repositories

Working with your domain specialist, we recommend exploring subsets of a selection of  repositories or domain specific ones. Please let us know when you are looking for specific material or have suggestions to add to the lists.

Just as you are supposed to do when using licensed material, you ought to cite the source or author of the OER you use. This in case your material is being checked on unauthorised use of copyright protected material (e.g. in Canvas or a video you publish), but also to give credits to the original creator. This is especially a topic in the context of recognising and rewarding educational activities like creating educational material.