AlongTheCharles.com - Photos of wildlife and sights along with maps of the Charles River.
Blue Hill Observatory - The oldest continually-operated weather observatory in the U.S. Offers guided tours on weekends. Includes weather archives, a photo gallery, information for teachers, and current conditions.
Camnet: Blue Hill - Real-time air pollution visibility camera network.
Friends of Boston Harbor Islands, Inc. - Provides tours, trail maintenance, and advocacy for preservation of the Boston Harbor Islands. Includes information about the islands, an event calendar, a newsletter, and information about volunteering.
Friends of Breakheart Reservation - Volunteer organization dedicated to the preservation and improvement of Breakheart Reservation and Camp Nihan. Includes a list of activities, downloadable maps, and membership information.
Greater Boston Physicians for Social Responsibility - Affiliate of the Physicians for Social Responsibility, focusing on the linkages between environmental exposures and health. Includes detailed information on current projects, report purchase forms, and membership information.
Toxic Air Pollution - Table showing summary information and detailed information on PM-10 concentrations reported at individual monitoring stations for Boston and nearby communities. From the Natural Resources Defense Council.
Zoo New England - Franklin Park Zoo in Boston and Stone Zoo in Stoneham. General information, virtual tour, animal pictures, volunteer information, and conservation plans.
