CarParts.com: another site full of stock and performance automotive parts

Jegs High Performance Automotive Parts: another site for automotive performance parts

Horsepower TV: the web site for a television show that comes on TNN. It may be corny but they give some good tips.

FBody.com: a good resource for any F-Body(Camaro/Firebird/Trans-Am) enthusiast

RKSport: a place with many performance parts and accessories to many GM vehicles

SLP Performance Parts: a good source of parts for Camaros and a number of other vehicles

T. Byrne Motorsports: another large source of parts for GM vehicles, especially Camaro and Firebird

Firebird/Camaro V6: a great resource center for anyone with a late model V6 camaro or firebird.  My name is TurboProject on the message board.