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Deep Heat Mining
Hot dry rock geothermal energy program in Switzerland. About the technology and the ongoing development program, including photos, maps, and diagrams.
http://www.dhm.ch/
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.
http://www.geothermal.org/
New Zealand Geothermal Association
Purposes include encouraging research, development and use of geothermal energy in New Zealand.
http://www.nzgeothermal.org.nz/