Media Repositories
http://wiki.creativecommons.org/Content_Directories

Clipart
http://openclipart.org/

Images

Flick (a Yahoo website)
http://www.flickr.com/creativecommons/

Google Image Search with Usage Rights option (Before last option)
http://www.google.com/advanced_image_search?hl=en

Sound/Audio


Music
http://creativecommons.org/legalmusicforvideos

Video/Film
http://www.archive.org/details/movies
http://wiki.creativecommons.org/Films

3D models
http://www.3d02.com/3d_model_index.aspx?LstOrder=Free&OptSearchType=1&LstPageSize=30

Other videos that explain or promote Creative Commons

Creative Commons Academic Praise and Criticism

Creative Commons and the New Intermediaries
http://works.bepress.com/cgi/viewcontent.cgi?article=1000&context=michael_carroll

Building a Reliable SemiCommons of Creative Work
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=957939

What Contracts Can't Do
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=760906&rec=1&srcabs=957939

Dynamic Link to a Google Scholar Search
http://scholar.google.com/scholar?start=20&q=analysis+intitle:%22creative+commons%22&hl=en&as_sdt=20001