OER & ZTC: Open Textbooks

DOAB is a community-driven discovery service that indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers.

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

Provides "tools and services to support effective teaching and learning practices."

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

OCW is a free and open publication of material from thousands of MIT courses across the entire MIT curriculum.

The National Academies Press (NAP) publishes the publications of the National Academies of Sciences, Engineering, and Medicine.

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

A "suite of products makes it easy to create, adapt, and share educational material."

Project Gutenberg is a library of over 60,000 free eBooks.

Brings together high-quality open educational resources from leading colleges and universities. Curated by librarians and their institutions, the Teaching Commons includes open access textbooks, course materials, lesson plans, multimedia, and more.

Textbooks in the Open Textbook Library are considered open because they are free to use and distribute, and are licensed to be freely adapted or changed with proper attribution.

The open-content textbooks collection that anyone can edit.