Environmental Action Committee of West Marin
- Current issues, donation information and events for this activist organization.
- http://www.eacmarin.org/

Marin Hazardous & Solid Waste Joint Powers Authority
- Ensures Marin's compliance with the California Integrated Waste Management Act. Includes information on ways to reduce and recycle solid waste and properly dispose of hazardous materials.
- http://www.marinrecycles.org/

Marin Agricultural Land Trust
- Non profit preserving farmland in the county. History, map of designated lands, news and volunteer information.
- http://www.malt.org/

County of Marin Environmental Health Services
- Programs and services include waste management, water quality protection, food safety monitoring, land use planning and vector control.
- http://co.marin.ca.us/depts/CD/main/comdev/ehs/

CERES - Marin County
- An index to environmental information for the county. Extensive reference includes road, weather, and flood conditions, demographics, historical resources, maps.
- http://ceres.ca.gov/geo_area/counties/Marin/