Alternative Fuels Data Center
Provides information on alternative vehicle fuels and transportation technologies and related legislation. The center also distributes the newsletter "Biofuels News."
Fuel Consumption Converter.
International fuel consumption converter, kilometers per liter to miles per gallon.
Biofuels blog provides news, opinion, and in-depth objective analysis about ethanol plants, DIY biodiesel, car hackers, energy legislation, cellulosic and algae biofuels. Aimed at both technically-minded and novice readers.
Answers to nearly every gasoline-related question which can be asked.
HowStuffWorks: How Gasoline Prices Work
Information on what drives the price at the pump, with pictures and related links.
U.S. Department of Energy: Fuel Economy
Find cars that protect the environment and save you money. Information on advanced technology, gas mileage tips, links, and car by car fuel ratings.
Uncle Mark's Alternative Fueling Station
Alternative motor vehicle fuel FAQs, detailed background information on the subject, and reports on developments in the alternative-transportation marketplace.