Friends of Hammonasset: Volunteer organization working with State and local park management to provide environmental education, preserve the park's natural resources and raise public awareness.
Griswold Airport: Aeronautical information, including location, runways, taxiways, navaids, radio frequencies, FBO information, fuel prices, hotel and motel listings, hotels, weather, sunrise and sunset times, aerial photo and airport diagram.
Madison Community Guide: Includes contact information for the municipality, Chamber of Commerce, Historical Society, and area attractions.
Madison, Connecticut: Community information including on municipal offices, Town calendar, employment and events.
Shore Publishing Community Newspapers: News from the Madison Source, Guilford Courier, Old Saybrook Harbor News, and the Branford Sound.