Creative Commons: http://creativecommons.org/about/

Google Creative Commons search: http://www.google.com/support/websearch/bin/answer.py?answer=29508

Wiki Creative Commons: http://wiki.creativecommons.org/CcSearch

Fotopedia: http://www.fotopedia.com/

Library of Congress Images / Flickr: http://www.flickr.com/photos/Library_of_Congress

American Memory Project: http://memory.loc.gov/ammem/index.html

Firefox and Creative Commons: http://wiki.creativecommons.org/Firefox_and_CC_Search

Slideshare presentation from Renee Hobbs: It is titled:

Copyright Clarity: How Fair Use Supports Digital Learning: