Sustainable Washington Alliance - Network of individuals, businesses, and organizations working to create a sustainable future for the region.

Metropolitan Washington Environmental Professionals - Local affiliate of the National Association of Environmental Professionals.

Floral and Nursery Plants Research Unit - Conducts a broad based program contributing to basic and developmental research and the implementation of new technologies for the florist and nursery industries.

Potomac Tech Journal - Newsweekly covering emerging technology.

Washington Regional Network For Livable Communities - Advocates transportation investments, land use policies, and community designs that enhance existing communities and the environment of the region.

HowStuffWorks: Exploding Manholes - Information on the frequent mishaps under the streets of the city.

Environmentors - Committed to helping one hundred public high school students create opportunities for brighter futures through mentorship, educational enrichment, and the fostering of a sense of environmental stewardship.