Question:

Where do I find out more [about geothermal energy]?

Answer:

As part of this video series, we developed factsheets for each of the energy technologies. The geothermal factsheet has sources at the bottom.

You also can visit yourownpower.com to learn more about the Chena Hotsprings project. United Technologies also has lots of info on geothermal power. Jeff Tester at MIT has explored the possibilities for Enhanced Geothermal Systems and did an interesting presentation at the DOE Geothermal Program Workshop [PDF].

And, of course, you can buy Earth: The Sequel to learn more.