Autos
All Car Central.com - http://allcarcentral.com/
Features automotive news, photos, and listings of all car makes and models. Includes events, test drives, and blogs.
Fiberglass Forums - http://fiberglassforums.com/
A discussion forum for general fiberglassing and car audio fabrication.
Mobileaudio.com - http://www.mobileaudio.com/
The definitive source of car audio information.