| Environment | |
| http://www.conservation.org/ | Conservation International |
| http://www.cwp.org/ | Center for Watershed Protection |
| http://www.enn.com | Environmental News Network |
| http://www.ewg.org | Environmental Working Group |
| http://www.foe.co.uk/ | Friends of the Earth UK |
| GreenCorps | Environmental Leadership Training |
| http://www.greenpeace.org | Greenpeace Environmental group |
| http://www.iucn.org/ | World Conservation Union |
| Int'l Council For Local Environmental Initiatives | Building Action at Local Levels |
| http://www.nwf.org/ | National Wildlife Federation |
| http://www.panda.org/ | World Wildlife Institute |
| http://www.environmentaldefence.ca/ | Environmental Defense Fund |
| http://www.swcs.org/ | Soil and Water Conservation Society |
| http://www.wetlands.org | Wetlands Education and research, Netherlands |
| http://www.worldwatch.org/ | World Watch Institute |