The International Solar Energy Society (ISES) : Encouraging the use of Renewable Energy everywhere, through appropriate  technology, scientific excellence, social responsibility, and global communication.

Welcome to American Solar Energy Society : Supporting solar energy solutions for you and your environment.

Florida Solar Energy Center (FSEC) : A research institute of University of Central Florida.

Solar Energy International SEI's Renewable Energy Education Program teaches the practical use of solar, wind and water power.

Solar Energy Industries Association : The Solar Energy Industries Association (SEIA) is the national trade association of solar energy manufacturers, dealers, distributors, contractors and installers.