Local:

Belchertown Land Trust:  http://www.belchertownlandtrust.org/

Franklin Land Trust:  http://www.franklinlandtrust.org/ 

Hampshire Bird Club:  http://www.hampshirebirdclub.org/

Hill Town Land Trust:  http://www.hilltown-land-trust.org/

Hitchcock Center for the Environment: http://www.hitchcockcenter.org 

Kestrel Land Trust:   http://www.kestreltrust.org/

Mass Audubon’s Arcadia Wildlife Sanctuary:
            http://www.massaudubon.org/Nature_Connection/Sanctuaries/Arcadia/index.php 

Mount Grace Land Conservation Trust:  http://www.mountgrace.org

Nonotuck Land Fund:  http://www.nonotucklandfund.org  

Northampton Wildlife Committee:  http://www.northamptonwildlife.org

Passcommuck Conservation Trust:  http://www.pctland.org/

State

Massachusetts Association of Conservation Commissions:  http://www.maccweb.org/ 

Massachusetts Department of Fish and Wildlife:  http://www.mass.gov/dfwele/ 

Massachusetts Division of Conservation and Recreation:  http://www.mass.gov/dcr/

Massachusetts Division of Fisheries and Wildlife,  MassWildlife:
            http://www.mass.gov/dfwele/dfw/dfw_toc.htm 

Massachusetts Land Trust Coalition:  http://www.massland.org/

Massachusetts Natural Heritage & Endangered Species Program:
            http://www.mass.gov/dfwele/dfw/nhesp/nhesp.htm 

The Trustees of Reservations:  http://www.thetrustees.org/

Mass Audubon:  http://www.massaudubon.org/index.php

National and International

American Farmland Trust:  http://www.farmland.org/

New England Forestry Foundation:  http://www.newenglandforestry.org/

New England Wildflower Society:  http://www.newfs.org/

Northeast Wilderness Trust:  http://www.newildernesstrust.org/

The Land Trust Alliance:  http://www.lta.org/

The Nature Conservancy:  http://www.nature.org/

The Trust for Public Land:  http://www.tpl.org/

United States Department of Fish and Wildlife:   http://www.fws.gov/

Silvio O. Conte National Fish and Wildlife Refuge:
          http://www.fws.gov/refuges/profiles/index.cfm?id=53590