Known sites:
  1. Yahoo site (at least Yahoo favicon): Water Well Drilling Rig and Geothermal Drill Rig Drill Water Well
  2. Google site: Google.org
What does Google and Yahoo Bot know? KW search
  • flame jet drill
  • hydrothermal drill
Note the words. It is the future of geo drilling.

Related site: The green revolution: Allr84U.com

We should start to drill deeper into the brains of SE's