Ariel of wetlands and fields.

Environmental Protection Agency.

Provides information on the Interagency Wetlands Plan; laws, regulations, and guidance; partnerships; landowner assistance and stewardship; educational resources; and other wetlands information.

USDA. Natural Resources Conservation Service.

Contains definitions and classification criteria for hydric soils; national and state lists.

Environmental Protection Agency.

Provides information on coastal wetlands, the Coastal Wetlands Initiative, managing wetland stressors, as well as access to tools and links.

DOI. Fish and Wildlife Service.

Provides wetlands information from the United States Fish and Wildlife Service. Also available is the Wetlands Mapper, which “integrates digital map data with other resource information to produce timely and relevant management and decision support tools.”

Ramsar Convention on Wetlands.

Contains information on wetlands, specifically focusing on the Ramsar Convention, which is the intergovernmental treaty that provides the framework for international cooperation for the conservation and wise use of wetland habitats and resources.

National Academies Press.

The 1995 report by the National Research Council "analyzes the scientific and technical basis for identification and delineation of wetlands."

University of Florida. IFAS.

Contains various information including a slide show on the benefits of native aquatic plants, and photographs, line drawings, and descriptions of wetland and aquatic plants.

Penn State University

"The mission of Riparia is to conduct, facilitate, and coordinate interdisciplinary research, monitoring and training regarding wetlands and related resources, with an emphasis on Mid-Atlantic and Northeastern states."