Audubon Greenwich: Information on flora and fauna, programs, volunteering, research and what's to be found at the center.
Department of Inland Wetlands and Watercourses: Municipal department provides news, meeting schedule and agendas, forms required for review and general information.
Friends of Greenwich Point: History of the Point plus information on programs, events, board of directors and membership.
Greenwich Conservation Commission: News, membership list, meeting information and conservation notices.
Indian Harbor Yacht Club and MY Sound: Description of the club's participation in the MY Sound project, which monitors water quality in Long Island Sound.
Western Long Island Sound Station: Marine environmental montoring information such as surface and bottom water quality, temperature and salinity.