graphicPUSH: Free icons and free icon sets for web designers.
AJAX Activity indicators | Animated GIFs designed to indicate your site is doing something
A collection of royalty-free animated GIF icons to use when your web application is loading
Open Source Web Design
Download and upload free web designs.
squidfingers / patterns
famfamfam.com: Icons
famfamfam is the personal website of Mark James
script.aculo.us - web 2.0 javascript