Long over due. Cool sites to check out. If anyone thinks there is a cool site to add PM and I'll take a look at it

Car Info

GM Media Online
Number one source for information on GM's engines and transmissions.

Car Calculators

1010Tires.Com
Great if you need to do some estimations for wheel fitment.
Miata.net's Tire Calculator
It's a great tool for when you are making drastic tire changes.

Forums

Carnuts
Everyone knows about this site and it's cool members.