MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity.
A nonprofit based at Rice University.
Access note: Freely available to the public. To access faculty-only materials, you can create an OpenStax account and request faculty access. See their FAQ for more info (https://openstax.org/faq)
Provides about 100 open textbooks in various disciplines. The Open Textbook Library is supported by the Center for Open Education and the Open Textbook Network.
Access note: Freely available to the public.