Deep Heat Mining: - Hot dry rock geothermal energy program in Switzerland. About the technology and the ongoing development program, including photos, maps, and diagrams.
DOE: Geothermal Energy: - Idaho National Laboratory of the U.S. Department of Energy (DOE). Includes information about use of geothermal energy, laws and standards, calendar of events and FAQ.
DOE: Geothermal Energy Program: - Research and development projects of the U.S. Department of Energy (DOE). Includes insights, technical data and publications.
DOE: Geothermal Research Department: - Program of the U.S. Department of Energy (DOE). Focus on drilling, field testing and related technologies.
Geothermal Resources Council: - Encourages worldwide research and development on geothermal energy resources and utilization. Calendar of events, workshops, membership information, publications, related links and other information.
International Geothermal Association: - Information on geothermal energy in use around the world, world conferences on geothermal, and links to related web sites.
NEDO: Geothermal Energy Development Department: - Department of the New Energy and Industrial Technology Development Organization (NEDO). Includes data about research and development activities.
Wikipedia: Geothermal Power: - Free encyclopedia article describing the concept of geothermal power. Addresses technical aspects, type of sources, electrical generation and cost.