Erowid
If it's a mind altering substance, you'll find a wealth of knowledge about it here.
DanceSafe
Information and resources to keep you alive and dancing.
Ravelinks
Used to be cool, then became drama... It's still up, but it's more of a link farm than when Don ran it
Go to my RLF board above... maybe you'll run into someone from back in the day.
Pure Acid Mixtapes
The original massive mixtape booth, and their online incarnation.
Friends/Other: Random People Comics
A web comic by the founder of Random People Productions from back in the day