Graphics
Art-Builders.com - http://www.art-builders.com/
A graphic development studio offering a variety of clip-arts, illustrations, icons, mascots, and logos. Includes FAQ's, testimonials and online shop.
Clearingpoint - http://www.clearingpoint.de/
Offers manmade and natural material, and colourful fantasy textures for 3d programs and websites. Also available in German.