Legal Music downloads for presentations Free Play Music
Jamendo is the world's #1 platform for free and legal music downloads! Jamendo Free Music
Offers all kinds of clip art, including animated clips Discovery Education Clip Art
Organized by topic and easy to use Pics4Learning
Animal Photos Encyclopedia of Life
LIFE Magazine Photos Life Photo Archive hosted by Google
You can use many of the photos/videos on these sites free as long as you give credit to the owner in your work. Creative Commons