Eco Car
- Information resource about hybrid cars. Includes reviews, specifications and chat forum.
- http://www.ecocaronline.com

Why Buy Hybrid
- Provides information resource about hybrid vehicles. Includes technological background, buying guide.
- http://www.whybuyhybrid.com/

Hybrid Vehicles
- Review articles of hybrid vehicles.
- http://www.hybrid-vehicles.net

Research Hybrids
- Information resource about hybrid cars and their ecological efficiency. Includes charts, review, articles and comparison tools.
- http://www.researchhybrids.com

Union of Concerned Scientists - Clean Vehicle Program
- Offers background information about various clean transportation technologies including hybrid gas-electric cars, fuel cells, and all-electric vehicles. Also find an analysis of the potential of hybrid cars, driver viewpoints, and a green car buying guide
- http://www.ucsusa.org/clean_vehicles/

California Car Company Initiative
- A non-profit group promoting "plug-in hybrids" - hybrid gas/electric cars that have larger batteries and can be recharged at an outlet.
- http://www.calcars.org/

Cereveh
- Research center in the field of electric and hybrid vehicles. Encourages the development of innovative technologies with respect to electric transportation. [French, English]
- http://www.cereveh.org

Team Fate
- Design team with purpose of developing hybrid cars. Includes project overview.
- http://www.team-fate.net/

Alternative Transportation Page
- Articles about environmentally friendly hybrid car transportation. Addresses issues and technical aspects.
- http://www.motherearthnews.com/alternative-transportation

Hybrid Center
- An ideal consumer and technology resource on hybrid-electric vehicles. Find out how hybrids work and compare vehicles side by side, rating fuel economy, emissions, and degree of hybridization.
- http://www.hybridcenter.org/

Is a Hybrid Worth It?
- Analyzes the gas-electric hybrid from an economic standpoint.
- http://www.omninerd.com/2005/11/11/articles/41

GreenHybrid - Hybrid Cars
- The interactive hybrid cars resource. Hybrid discussion forums, articles & tips, the Real Hybrid Mileage Database and hybrid car image gallery.
- http://www.greenhybrid.com

Hybrid Car Information
- Lots of information for consumers looking to become educated in the hybrid car market.
- http://www.hybrid-car.org

NREL Hybrid Electric and Fuel Cell Vehicles
- Information on hybrid electric vehicle (HEV) and fuel cell vehicle (FCV) research and development at the National Renewable Energy Laboratory.
- http://www.nrel.gov/vehiclesandfuels/hev/

Hybrid Car Guide
- Provides hybrid car information and industry news for the curious or the enthusiasts, plus a fuel savings calculator.
- http://www.hybridcarguide.com

Hybridcars.com
- Information about hybrid vehicles, with daily news, blogs, and interactive tools, including a link that allows users to compare hybrid and non-hybrid vehicles, for gas consumption and emissions.
- http://www.hybridcars.com/

EV World
- News, forums, and marketplace related to electric cars, hybrid-electric and fuel cell vehicles. A lot of the content requires a paid subscription.
- http://www.evworld.com

Green Guide to Cars and Trucks
- Ranks cars and trucks according to environmental friendliness. Using this consumer guide, buyers can compare cars, vans, pickups, and sport utility vehicles by their environmental impacts, including air pollution, global warming, and fuel efficiency.
- http://www.greenercars.com

Fueleconomy.gov
- The Department of Energy's fuel economy site gives gas mileage tips, gas price info, and a tool to compare fuel efficiency of hybrids and conventional cars. The "Fuel Economy Guide" provides the government view on reasons to be concerned about
- http://www.fueleconomy.gov/feg/hybrid_news.shtml

How Stuff Works: Hybrid Cars
- Graphical tutorial explains the workings behind these vehicles. Also includes some current real-world examples and related links.
- http://www.howstuffworks.com/hybrid-car.htm