...
Stellar is MIT's course management system. It provides ready-to-use customizable web sites for distributing course materials to students and instructors in the class, and many other tools to support teaching and learning in and out of the classroom. OpenCourseWare (OCW) makes the publishes unrestricted course materials available to any user, anywhere in the world, free of charge. OCW courses are published sometime after the semester they are taught.
web.mit.edu/teachtech/courses
...