The Center for Social Media at American University has released Remix Culture: Fair Use is Your Friend.
Here's an excerpt from the announcement:
Last summer the release of the Code of Best Practices in Fair Use for Online Video nearly crashed our servers with people downloading the document. Based on this demand, we created Remix Culture: Fair Use Is Your Friend is a collaboration with the Program on Information Justice and Intellectual Property—a program of AU's Washington College of Law—along with Stanford Law School's Fair Use Project. The video was funded by Google.
See also the Code of Best Practices in Fair Use for Online Video.