For fifteen years, the U.S. Green Building Council, a 501(c)3 non-profit community of leaders, has been working to make green buildings available to everyone within a generation.
http://www.usgbc.org

Linking citizens to resources for healthy, vital, sustainable communities.
http://www.sustainable.org

NRDC is perhaps the nation’s most effective environmental action group.
http://www.nrdc.org

Helping save money through the use of energy efficient products.
http://www.energystar.gov

Through the NGBP, the National Association of Homebuilders is helping members move the practice of green building into the mainstream, through energy efficiency, water conservation and use of recycled products.
http://www.nahbgreen.org

RMI, founded by Hunter and Amory Lovins, is a non-profit organization fostering the efficient and restorative use of resources to make the world secure, just, prosperous and life-sustaining.
http://www.rmi.org