AlGore.com (Al Gore's environmental activism site)

VirginEarth.com (Al Gore's sister site)

Bioneers.org (Forum for connecting the environment, health, social justice, and spirit)

Care2.com (Green living, health, human rights, and more)

Envirocitizen.org (Environmental Citizens Orginization, making a positive impact on your environment)

Environmentaldefense.org (Innovative ways to solve our most urgent problems)

Envirolink.org (Linking various organizations through common goals)

Getf.org (Global environmental and technological foundation)

Globalgreen.org (Featuring a global value shift toward a sustainable future)

Greenpeace.org (Fighting for environmental causes worldwide)

Saveourenvironment.org (Harnessing the power of the internet to sharpen awareness of environmental issues)

Usgcrp.gov (Global Change Research Program)

Wri.org (World Resources Institute)

Earthactionnetwork.org (Dedicated to prevention of earth damaging developments)

Earthjustice.org (Because the earth needs a good lawyer)

Environmentaldefense.org (Defending the earth)

Lev.org (League of conservation voters, individual political voice for the environment)

Truthout.org (Political environmental action network)

Carbonfund.org (Reduce what you can, offset what you can't)

Panna.org (Pesticide action network of North America)

Pollutionprobe.org (Pressing for practical solutions through advocacy)

Toxicactioncentertoxicsactions.org (Fighting toxins in our neighborhoods)

iisd.org (International institute for sustainable development)

iscvt.org (Institute for sustainable communities)

naturalstep.org (Natural Step)

cleanair_coolplanet.org (working to stop greenhouse gases.)

Climatehotmap.org (Showing the variant affects around the globe.)

Climatenetwork.org (Action network to shift global warming.)

Globalwarming.net (Fighting global warming)

Americanrivers.org (Working to increase protection of America's rivers.)

Healthebay.org (Protecting and cleaning up California's shores)

Noaa.gov (National oceanic atmospheric association)

Oceana.org (Protecting the world's oceans)

Conservation.org (International conservation programs)

Coopamerica.org (Economic action for a just planet.)

Earthisland.org (Conservation, preservation, restoration.)

Earthtrust.org (Global innovators for the environment and wildlife.)

Earthwatch.org (Promote understanding and action for a sustainable environment.)

Nrdc.org (Natural Resources Defense Fund)

Rmi.org (Rocky Mountain Institute) (Profitable Innovations for energy and resource efficiency.)

acpropulsion.com (Developing, manufacturing licensing technology for electric propulsion.)

energystar.gov (Protecting our environment for future generations.)

greasenotgas.com (Using vegatable oil instead of gas.)

hydrogengarage.com (Splitting molecules of water into a clean burning fuel.)

Pacificbiodiesel.com (Renewable fuel for a clever tomorrow.)

PluginAmerica.com (Powering vehicles with cleaner cheaper electrically.)

Solarcity.com (Committed to reducing cost of solar power.)

defenders.org (defenders of wild life)

janegodall.org (wild life preservation and activism)

nature.org (nature conservancy)

nwf.org (national wild life fund)

wwf.org (world wild life foundation)

enn.org (environmental news, giving you the most up to date news about the envinronment)

ema-online.org (environmental media association) (celebrity led association)