Finding open educational resources is the first step into switching from commercial texts. The page you are currently on has two search boxes for finding resources through metadata or through one of the many repositories. Use the subcategories under the Find OER tab to the left to be taken to textbook collections, other repositories, Open Courseware, Images, Public Domain, and more!
The Mason OER Metafinder helps you find Open Educational Resources. Unlike other OER discovery sites (e.g, OER Commons, OASIS, MERLOT, OpenStax, etc.) with our Metafinder you aren’t searching a database that Mason built. Instead, the OER Metafinder performs a simultaneous search across 21 different sources of open educational materials.