These links are oriented towards Preludes, but also towards other car related sites.

Prelude Sites
Prelude Power The BEST online prelude forum on the internet..RIP hp.com
Prelude Online Good forum, but you have to pay to be member: Six Dollars/Year
HPOA Honda Prelude forum
Increased Velocity A nice site for all cars. Started by a member of pp.com

Other Car Sites
Overboost A nice site on performance parts for all cars
Asylums Motorsports Site with Body Kits and Wings for most cars. Good prices!
Aerogear Bodystyles site
Ractive Good Performance Site.
Ground Designs 2000 Maker of the Black Widow Body Kit
Wheel Max Offers Wheel and Tire packages for Cheap!!
Tire Rack Good Site to purchace Wheels and Tires!