The following Internet sites were active as of December, 2001.

• American Council for an Energy-Efficient Economy
  
• American Solar Energy Society
  
• Arizona Solar Center
  
• California Solar Center
  
• Canadian Association for Renewable Energies
  
• Earthwatch
  
• Ecomall
  
• Energy Data and Statistics
  
• Energy Efficiency and Renewable Energy Network
  
• Energy Information Administration
  
• Environmental Protection Agency
  
• Florida Solar Energy Center
  
• Global Environmental Technology Foundation
  
• Green Power
  
• Home Energy Saver
  
• Interstate Renewable Energy Council
  
• International Association for Solar Energy Education
  
• International Solar Energy Society
  
• Million Solar Roofs Initiative
  
• National Center for Photovoltaics
  
• National Renewable Energy Laboratory
  
• North Carolina Solar Center
  
• Public Citizen
• Renew America
  
• Renewable Energy Policy Project
  
• Sandia National Laboratories
  
• Solar Cookers International
  
• Solar Energy and Energy Conversion Laboratory
  
• Solar Energy Industries Association
• Solar Energy Research and Education Foundation (SEREF)
  
• Solar Environmental Benefits Calculator
  
• Solar Radiation Resource Maps
  
• Solar Rating and Certification Corporation
  
• Solstice
  
• State Energy Alternatives
  
• State energy-saving strategies
  
• State Renewable Energy News
  
• Sustainable Buildings Industry Council
  
• The Stella Group Ltd.
• U.K. Solar Energy Society
  
• U.S. Department of Energy
  
• U.S. Environmental Protection Agency