Offers a wide array of open content that you can access for free. Some of their modules are low-cost homework platforms that can be integrated with an LMS, but all of the Lumen resources can be used for free.
An initiative of MIT to put all of the educational materials from its undergraduate and graduate level courses on line. All content is open and available to the world.
A collection of open educational resources from University of Michigan. Included are a range of course materials, videos, lectures, student work and more.
