For Example:
Arttoday.com , clipart.com a good source for free to use clipart. they have a variety of photos, animated images and drawings to choose from that are all free to use. They have membership subscriptions to access more files but these seem useful enough. quicktime.com, real.com These sites have players and catalogs of video and audio resources on the internet. I particularly like the Real.com's international radio stations that I can use in my spanish class to show the students the different dialects of Spanish that are used around the world.