Government Offices:
U.S. Department of Energy
U.S. Environmental Protection Agency
Energy Star Homes
Building America

Industry Associations:
U.S. Green Building Council
National Association of Homebuilders
Sustainable Buildings Industry Council
National Association of the Remodeling Industry
American Society of Interior Design
American Institute of Architects
American Society of Landscape Architects
Architects/Designers/Planners for Social Responsibility

Information & Resources:
National Association of Homebuilders Research Center
BuildingGreen, Inc.
The Not So Big House
Energy & Environmental Building Association
Green Affordable Housing Coalition
Green Building Pages
PATH
International Erosion Control Association
American Forests
American Solar Energy Society
Urban Land Institute

Local Building Programs & Resources:
Arizona Green Building Program
California Green Builder Program
Built Green Colorado
Florida Green Building Coalition
Georgia EarthCraft House
Hawaii Built Green
Michigan Green Built Program
Oregon earth Advantage
Texas Green Building Program
Built Green Seattle
Wisconsin Green Built Home

Product Information:
Green Guard
Green Seal
Oikos Directory
Healthy Home
Forest Stewardship Council (U.S.)
Real Goods