Open Educational Resources: What Are They; Finding and Evaluating Them; Creating and Licensing Them: Hey, you found me!

Both a platform and a repository for open textbooks. Any registered user can contribute content. The author retains control over revisions to the module, and is attributed. Content is usually available in the form of modules, which can be selected and combined to create a custom textbook. Once you've adopted a module for your textbook, you can make edits to it in your textbook, but the module in the repository is still under its author's control.

Information on copyright, Fair Use, getting permission, and the Creative Commons.

A great way to learn about the Creative Commons and Open Culture.

A huge, reputable repository of OER.

ISKME, a not-for-profit research institute

Articles and presentations tagged OER on Educause.

Links to many different OER Repositories - some big, some small.

A clearinghouse of OER, including learning object repositories, open course repositories, scholarly repositories, open textbooks, and information about open learning/education in general.

Links to Open Textbooks platforms and repositories.

Florida's digital repository of OER.