Mid-Atlantic Environmental Law Center
- Not-for-profit environmental law firm that provides legal services and advocacy support to public interest organizations in Delaware, Maryland, New Jersey, Pennsylvania, and Virginia. Includes issues information.
- http://www.maelc.org/

EPA Mid-Atlantic Integrated Assessment
- A large collection of reports, maps, and data about natural resources, environmental conditions, and concerns in the region.
- http://www.epa.gov/maia/index.html

EPA Regional Vulnerability Assessment Program - Mid-Atlantic Assessment
- Information on the spatial distribution of various environmental stressors in the Cheseapeake Bay watershed plus other parts of Pennsylvania, Virginia, West Virginia, and Maryland.
- http://amethyst.epa.gov/revatoolkit/AssessmentQuestions/InterestArea.jsp

Small Farm Success Project
- A coalition of land grant universities, USDA, and nonprofit organizations in the Mid-Atlantic region, dedicated to helping small and emerging farmers improve financial success. Farmer profiles, explanation of their grant process, publications, and links
- http://www.smallfarmsuccess.info/

White Clay Watershed Association
- Dedicated to the protection and improvement of the environmental quality of the White Clay Creek and valley in Delaware and Pennsylvania. Includes maps, photos, membership information, and newsletters.
- http://mercury.ccil.org/~wcwa/

USGS Delaware River Basin National Water-Quality Assessment
- Information about a long-term study of the watershed, which includes portions of Pennsylvania, New Jersey, New York, and Delaware.
- http://nj.usgs.gov/nawqa/delr/

Mid-Atlantic Exotic Pest Plant Council
- Addresses the problem of invasive exotic plants in the region. Brochure, e-mail group, organizational information, and links.
- http://www.ma-eppc.org/

U.S. Forest Service Morgantown Field Office
- Providers of technical and financial assistance to the six mid-Atlantic States and the District of Columbia.
- http://www.fs.fed.us/na/morgantown/

US EPA Region III
- Responsible for the implementation of federal environmental programs in DE, MD, PA, VA, WV and DC. Region III and its partner state pollution control agencies are responsible for regulating over 21,000 air pollution sources; 12,000 water pollution sources
- http://www.epa.gov/region3/

Mid-Atlantic Fishery Management Council - MAFMC
- Federal agency responsible for managing fisheries in federal waters off the coasts of North Carolina through New York.
- http://www.mafmc.org/mid-atlantic/mafmc.htm

Mid-Atlantic Apiculture
- Beekeeping information from the Mid-Atlantic Apiculture Research and Extension Consortium, a cooperative venture between five state universities and the USDA.
- http://maarec.cas.psu.edu/

Ground Water Atlas of the United States: Segment 11
- Online USGS report discusses groundwater resources of Delaware, Maryland, New Jersey, North Carolina, Pennsylvania, Virginia, and West Virginia.
- http://capp.water.usgs.gov/gwa/ch_l/index.html