Earth 911 – recycling center-finder, information about recycling, hazardous waste, air pollution prevention, composting, more.
Protecting Water from Non-Point Source Pollution – Sources and effects of water pollution, links to local organizations in U.S. states.
Toxics Use Reduction Institute – Massachusetts-based organization supporting reduction in toxic chemical use in industry and communitites. Site includes community projects, chemistry information and research, education and training resources.