Where can I find free sprites and images?

I need sprites and images, such as characters, landscapes and others. Where can I find them?

Answer

Lost Garden has lots of free graphics that you can use in your games.

For RPG Games you have a cool 32x32 tileset and lots of free to use sprites, objects, icons, etc..

http://soundimage.org/ has a lot of cool textures that are free to use...many of them are seamless so they tile. They are on the "TXR" pages.