MIT Open Courseware
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.
The OpenLearn website gives free access to Open University course materials. This is the LearningSpace, where you'll find hundreds of free study units, each with a discussion forum. Study independently at your own pace or join a group and use the free learning tools to work with others.
Open Educational Resources: Free to use teaching and learning content from around the world.
Cloudworks, a place to share, find and discuss learning and teaching ideas and experiences.