About.com's Hybrid Car Guide
Eric Powers' overview of all things hybrid.
hybridcars.about.com

California Cars Initiative
Non-profit dedicated to plug-ins
CalCars.org

Conservation Value
Financial growth & healthy living through conservation
ConservationValue.org

Dossil Fuels
Committed to bringing you information to arm yourself with alternative energy capabilities.
DossilFuels.com

Wikipedia's Hybrid Car Entry
The free encyclopedia that anyone can edit
en.wikipedia.org/wiki/Hybrid_car