Northwest Service Academy rebuilds watersheds, reinforces schools, and rebuilds communities in the Pacific Northwest.
Pennsylvania Resources Council, a citizen-based grassroots organization, has an online buyer's guide to recycled products.
Puget Sound Clean Air Agency enforces clean air regs for the Puget Sound Area. Has a daily air quality report and air pollution regulations.
Friends of the Blue Hills was created in 1976 to restore, preserve and protect approximately 8,000 acres of the Historic Blue Hills and Neponset River Reservations in Massachusetts.
Friends of the Boston Harbor Islands is working on restoring natural habitat to Boston's harbor islands.
Northwest Environment Watch publishes their research on issues affecting the northwest North America.
The Massachusetts Bicycle Coalition is the statewide bicycling advocacy organization.
Chicagoland Environmental Network has info on environmental issues, volunteer opportunities, organizations, and resources in northeastern Illinois.
Charles River Watershed Association seeks to protect the 309 square miles of the watershed of the Charles River in Massachusetts. They have a fun canoe/kayak race every year (Run of the Charles) to raise funds.