Looking for an OER textbook? Try searching the Mason OER Metafinder. Use the search box above.
For More information on the Mason OER Metafinder click here.
The searches sixteen targets in real-time, instantly returning the top several hundred or so relevant hits from each site. Because it is a real-time search, it can take a bit longer than searches of pre-indexed content; however, as compensation, the results returned are absolutely up-to-the-minute for each search target. Additional results continue to trickle in as the search continues running and you begin examining your results. From https://publishing.gmu.edu/whos-using-the-mason-oer-metafinder/
The Open Textbook movement focuses on the creation of books that are built specifically for use as free or low-cost options for education. Many of the collections will have links to the same books, but each repository has a particular focus, and items you can't find in other collections.
This is not a complete list so we will update when possible.