Here are some links to Web sites that have materials (photos, videos, music, etc.) that the copyright holders have made available to use with permission.

BUT...BE AWARE, although is is okay to use these materials for personal or school projects, they must be properly cited by including a caption attribution. For example, "Source: Point-Shoot-Edit on Flickr"

Please make sure to check the instructions for attribution requirements on each website. It is up to you, as the user, to take responsibiliby for identifying and following copyright notices. Look for a link that says "Terms of use" or something to that effect.

General:

http://copyrightfriendly.wikispaces.com - general portal site to all sorts of fair use materials

http://people.uwec.edu/koroghcm/public_domain.htm- portal to various government sites with image galleries and other materials in the public domain

http://www.wikimedia.org - an online library of free content publications collected and maintained by the wiki community 

Clipart:

http://www.flickr.com - Social networking photo site with option to search by creative commons licensed photos

http://www.edupic.net/ - Pictures and drawings for use by teachers and students for educational purposes

http://photogallery.nrcs.usda.gov/ - Photos from the Natural Resources Conservation Society showing wildlife, scenery, and other natural resource-related images

Movies/Video:

http://publicdomainmovies.info/ - free movies and videos in the public domain

Music/Sound:

http://www.musopen.com/ - free public domain classical music

http://www.freeplaymusic.com/ - songs available for educational use, sorted by genre, "feel" and style, searchable by keyword

http://www.partnersinrhyme.com/pir/PIRsfx.shtml - royalty-free sound effects