Green Seal is an independent non-profit organization dedicated to safeguarding the environment and transforming the marketplace by promoting the manufacture, purchase, and use of environmentally responsible products and services.
http://www.greenseal.org

USGBC is a community of leaders working to transform the way buildings and communities are designed, built, and operated. They envision an environmentally responsible, healthy, and prosperous environment that improves the quality of life.
http://www.usgbc.org

GreenFaith is New Jersey's interfaith coalition for the environment. Founded in 1992 as PEQ, we inspire, educate and mobilize people of diverse spiritual backgrounds to deepen their relationship with the sacred in nature and restore the environment for future generations.
http://www.greenfaith.org

New York EcoSpaces provides information and updates on green real estate in New York City
http://www.nyecospaces.com/