AMPAGE has created a sound site for us!
sounds.ampage.org - check it out. This will be the main site for uploading sounds of our projects.
Other sites with sounds samples:
Stompbox Enthusiast Sound Files
Frank Clarke's Zone of Distortion
Jim Radner's HomePage
DIY Guitar Effects Page
My old XOOM/NBCI page still has links on the bottom to samples of realaudio. Those links still work, all the MP3 links are broken.