MIT Open CourseWare Provides free, searchable access to MIT’s course materials for educators, students and self-learners around the world.
Open Courseware consortium The OpenCourseWare Consortium is a collaboration of more than 100 higher education institutions and associated organizations from around the world creating a broad and deep body of open educational content using a shared model.
Connexions Rice University Connexions is an environment for collaboratively developing, freely sharing, and rapidly publishing scholarly content on the Web, hosted by Rice University.
Tufts University OpenCourseware Supports and advances education by making high-quality content freely available on the web for learners and faculty