American Solar Energy Society

The American Wind Association is the lobbying force for wind development and the voice for wind manufacturers in the United States.

Bergey Windpower, pioneer and leading supplier of small wind turbines 

Energy Efficient Building Association – promoting technology for energy efficient, environmentally responsible buildings and communities.

Energy Star rating for efficient appliances and buildings by the Dept. of Environmental Protection

US Department of Energy web site for information on energy efficiency and renewable energy technologies.

Florida Solar Energy Center is a research institute of the University of Central Florida

HomePower Magazine

Interstate Renewable Energy Council 

Keystone HELP Home Improvement Financing for energy-efficient loans including energy conservation measures, heating, cooling and renewable energy systems.

The National Renewable Energy Laboratory is the DOE's primary laboratory for renewable energy and energy efficiency research and development.

Citizens for Pennsylvania’s Future

Solar Rating and Certification Corporation

Southwest Windpower - leading manufacturer of personal size wind turbines.