==== the EFF's "Test Suite" of Fair Use Examples for Service Providers and Content Owners ====

"The following set of videos are intended as a concrete illustration of the kinds of user-generated videos that are at risk of being improperly blocked by automated copyright filters that attempt to "match" video and audio content against a database of "fingerprints" derived from existing copyrighted works. In developing our "Fair Use Principles for User Generated Video Content," these are among the videos we had in mind."

http://www.eff.org/pages/UGC-test-suite