Free introductory textbooks in a variety of subject areas. The books are published under a Creative Commons Attribution-ShareAlike (CC BY-SA) license, which means that anyone may quote, mashup, reuse, and republish any portion of any book, anywhere, so long as proper citation is given.
A collection of educational non-profit and for-profit organizations, affiliated with more than 200 colleges, that are focused on the mission of driving the awareness and advocacy for open textbooks.
Funded by The William and Flora Hewlett Foundation, their efforts include providing training for instructors adopting open resources, peer reviews of open textbooks, and mentoring online professional networks that provide support to authors who open their resources, and other services.
Contains 1000+ open access academic peer-reviewed books from 40+ publishers.
EdX is a non-profit created by founding partners Harvard and MIT. EdX offers MOOCs and interactive online classes in subjects including law, history, science, engineering, business, social sciences, computer science, public health, and artificial intelligence.
One of the oldest and largest OER collections, MIT OpenCourseWare (OCW) makes available nearly all content for undergraduate and graduate MIT classes.
Open Yale Courses provides free and open access to a selection of introductory courses taught by distinguished teachers and scholars at Yale University.