Find Open Textbooks
An open access textbook publishing initiative established by State University of New York libraries and supported by SUNY Innovative Instruction Technology Grants.
OpenStax, a non-profit based at Rice University, publishes peer-reviewed openly licensed textbooks.
This initiative which is from the Center for Open Education, University of Minnesota, offers a catalog of free, peer-reviewed, and openly-licensed textbooks.
A comprehensive listing of openly-licensed textbooks.
Materials found in this collection include textbooks, but also full university courses, interactive mini-lessons and simulations, and adaptations of existing open work.
Initiative from Vancouver which includes openly licensed textbooks.