Earth Charter
http://www.earthcharter.org/

Earth Day Network
Earth Day Network is the nonprofit coordinating body of worldwide Earth Day activities. Our goal is to promote a healthy environment and a peaceful, just, sustainable world by spreading environmental awareness through educational materials and publications, and by organizing events, activities, and annual campaigns. The network includes more than 5,000 organizations in 184 countries. The network is headed by the organizers of the original Earth Day in 1970, Gaylord Nelson and Denis Hayes, and is based in Seattle, Washington, USA. http://www.earthday.net/

Greenhouse Network
http://www.greenhousenet.org/network/southwest.html

The Natural Step
The Natural Step is an international organization that uses a science-based, systems framework to help organizations and communities understand and move towards sustainability. The Natural Step Framework was designed by Dr. Karl Henrick Robert of Sweden using a consensus-based process involving scientists, educators, politicians and other members of the general public.
International (Sweden) - http://www.naturalstep.com/
USA (San Francisco, CA) - http://www.naturalstep.org/

North American Alliance for Green Education
http://www.naage.org/index.html

Redefining Progress (Oakland, CA)
Redefining Progress is a nonprofit, nonpartisan public policy organization that seeks to ensure a more sustainable and socially equitable world for our children and our children's children. Working both within and beyond the traditional economic framework, RP generates and refines innovative policies and ideas that balance economic well-being, the environment, and social equity so that those living today and those who will come in the future can have a better quality of life.
http://www.rprogress.org/

Second Nature
http://www.secondnature.org/

UB Green Office
University Facilities, University at Buffalo (SUNY)
http://wings.buffalo.edu/ubgreen

University Leaders for a Sustainable Future
http://www.ulsf.org