US-Canada Air Quality Agreement
- Provides the text of this international agreement and results of monitoring done in conjunction with it.
- http://www.epa.gov/airmarkets/progsregs/usca/

Citizens Environment Alliance of Southwestern Ontario and Southeastern Michigan
- Organization monitoring impacts on the environment of and around the Great Lakes area of lower Lake Huron and western Lake Erie. Includes press releases, membership information and forums.
- http://www.citizensenvironmentalliance.org/

Great Lakes Basin Ecosystem Team
- US Fish and Wildlife Service information about the wildlife (including fish, migratory birds, and endangered species) and habitats of the region (including islands and coasts), and initiatives to protect and restore them.
- http://greatlakes.fws.gov/

Great Lakes United
- International citizens' coalition dedicated to protecting and restoring the Great Lakes - St. Lawrence River ecosystem. Includes information about issues, objectives, and positions.
- http://www.glu.org/

Lake Michigan Forum
- US network providing public input to US EPA on the Lake Michigan Lakewide Management Plan (LaMP). News and information about the lake, air and water quality and other topics of concern, and plans and activities.
- http://lkmichiganforum.org/

Great Lakes Planetarium Association
- Network of planetarians and astronomy educators, primarily in the US Great Lakes states, supporting astronomy and space science education everywhere.
- http://www.glpaweb.org/

Great Lakes Protection Fund
- Nonprofit corporation formed by the governors of the US Great Lakes States as a permanent environmental endowment that supports collaborative actions to improve the health of the regional ecosystem. Includes information about programs and grant opportuni
- http://www.glpf.org/

Binational.net
- USEPA and Environment Canada cooperative website for reports and other materials related to Great Lakes protection.
- http://binational.net/english.html

Environment Canada: Great Lakes
- Information and links about environmental conditions in the region and related government of Canada and binational programs, activities, research, and plans.
- http://www.on.ec.gc.ca/water/greatlakes/intro-e.html

Great Lakes Science Center
- US Geological Survey unit focused on biological resources in the Great Lakes Basin. Includes information about facilities, research vessels, research, and issues and concerns in the region.
- http://www.glsc.usgs.gov/

Great Lakes Environmental Atlas
- Online publication produced by the Government of Canada and the US Environmental Protection Agency, with information on many topics, largely related to the environment.
- http://www.epa.gov/glnpo/atlas/intro.html