- Open Educational Resources - Commons
"OER Commons gathers relevant materials about teaching, technology, research, and more, and encourages you to add links to materials, projects, or news related to the emerging field of Open Education."
- Internet Archive - Open Educational Resources
"This library contains hundreds of free courses, video lectures, and supplemental materials from universities in the United States and China. Many of these lectures are available for download."
- MIT Open Courseware
"Free lecture notes, exams, and videos from MIT. No registration required. 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."
- Khan Academy
"The Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere."