| Ohio EPA - Office of Pollution Prevention |
| Santa Barbara Air Pollution Control District |
| Pollution Prevention Assistance Division (P2AD) of the Georgia Department of Natural Resources |
| EPIC Department of Energy Pollution Prevention Information Clearinghouse |
| UCLA Center for Clean Technology |
| airpollution-biology |
| National Pollution Prevention Center (NPPC) for Higher Education |
| Environmental Information |
| Measurement of Air Pollution from Satellites (MAPS) |
| Rutgers - Environmental and Occupational Health Sciences Institute |
| PS Enterprises |
| InSITES |
| Earth Tech |
| Environmental Group 1, Communication and Transports in the Environment |
| United Nations Environment Programme, Working Group on Sustainable Product Development |
| UCLA Center for Clean Technology |
| Suisun Marsh Natural History Association (SMNHA) |
| Surfrider Online |
| Ministry of Science, Technology and Environment |
| MassBike - Bicycle Activity in Massachusetts |
| The Great Lakes Information Network - Economics |
| FoE Environmental Campaigns |
| Environmental Data, Facts, & Statistics |
| Hazardous Materials Management Magazine |
| Oxnetbiol |
| University of Miami RSMAS |
| International Global Atmospheric Chemistry (IGAC) Project |
| Pacific Basin Consortium on Hazardous Waste Research and Management |
| Skidaway Institute of Oceanography |
| International Environmental Law Index Web Page |
| University of Nevada Las Vegas |
| Farmer to Farmer |
| coastal-research |
| Texas Water Resources Institute |
| North Carolina State University Department of Chemical Engineering |
| Jet Trends |
| GreenWheels Electric Vehicle Resource List |
| Northwest Fisheries Science Center |
| Agency for Toxic Substances and Disease Registry Home Page |
| Environmental (& Animal Rights) Activism Index |
| Innovative Technologies Group |
| South Florida Environmental Reader |
| Electronic Green Journal |
| Cameron May Environmental Law Publications |
| A Guide to Environmental Resources on the Internet |
| Tellus Institute for Resource and Environmental Strategies |
| School of Natural Resources and Environment University of Michigan |
| Euro-America Clean Air Foundation |
| Institute for Process Engineering and Power Plant Research |