Photos, textures, other stuff.
An image search engine.
A way cool and large collection of textures.
Prepare to have your mind blown! LOTS of crunchy photographic goodness.
Background images are often tiles, but they don’t have to be. Learn how to create a single background image for the upper right of a page.
Good collection of seamless background tiles.
Both free and paid images.
This lesson explores how computers display images. Topics include pixels, color, color codes, channels, and anti-aliasing.