Geothermal Resources

http://www.terrapass.com/blog/posts/2006/08/can-you-afford-not-to-install-geothermal-power-for-your-hom.html

http://www.wednesdayjournalonline.com/main.asp?Search=1&ArticleID=6934&SectionID=3&SubSectionID=3&S=1

http://www.wednesdayjournalonline.com/main.asp?Search=1&ArticleID=7952&SectionID=3&SubSectionID=3&S=1

http://www.wednesdayjournalonline.com/main.asp?Search=1&ArticleID=6133&SectionID=3&SubSectionID=3&S=1

From Malcolm Gladwell,
http://gladwell.typepad.com/gladwellcom/2006/08/the_case_for_ge.html