Lots of pictures of animals to use in projects. Once you click on a particular bird or animal, it pulls all pictures of that animal from Flickr's Creative Commons.

This site is a great resource for Web 2.0 tools. Down the left side you click on the type of tools you want to find; presentation, collaboration, research, audio, and many, many more. Then it gives you a list of tools that fits that particular criteria

This site has MANY tutorial videos for math and science. They are geared toward the secondary crowd. It can be helpful for students who need help when at home or for teachers who are trying to help students in study hall. :)