Open Educational Resources -

Open textbooks are licensed by authors and publishers to be freely used and adapted. Download, edit and distribute them at no cost.
Now offering 1700 open textbooks, the Open Textbook Library is supported by the Open Education Network.

OpenStax is the world’s largest publisher of open education resources (OER) and a provider of interactive learning technologies and education research for high school and college. We are a nonprofit initiative of Rice University.

Opendora, developed by PALS, is a digital archive for open educational resources that serves as a central repository for Minnesota State faculty and librarians to leverage licensed open educational resources (OER) with the ability to access, load, and share material. Opendora allows the storage of or linking to, course content including textbooks, lecture notes, syllabi, reading lists, and videos

OER Commons is free for everyone, forever.
We offer tailored and context-specific services for individual institutions, consortia, and organizations looking to have a more intentional impact. As a nonprofit, we're first and foremost committed to our mission of participatory, equitable, and open education for all. These at-cost services help us further our mission in a sustainable way.

The Pressbooks Directory is a free, searchable catalog that includes 8,442 open access books published across 207 unique networks using Pressbooks. It's easy to copy, revise, remix, and redistribute any openly licensed content found here using Pressbooks' publishing platform. Nearly all books are highly accessible, and many include interactive H5P learning activities to engage learners.