Open Textbook Library
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. These books have been reviewed by faculty from a variety of colleges and universities to assess their quality.
MERLOT
The MERLOT collection consists of tens of thousands of discipline-specific learning materials, learning exercises, and Content Builder webpages, together with associated comments, and bookmark collections, all intended to enhance the teaching experience of using a learning material. All the materials in MERLOT are reviewed for suitability for retention in the collection.
OER Commons
OER Commons offers a comprehensive infrastructure for curriculum experts and instructors at all levels to identify high-quality OER and collaborate around their adaptation, evaluation, and use to address the needs of teachers and learners. Diving into OER Commons is an exciting opportunity to collaborate with other educators and learners, at the forefront of a new educational era.