Notes on the origin of Google Earth
Stefan Geens makes the following observation regarding Mark Aubin's entry:
So now we have Keyhole co-founder John Hanke claiming the inspiration was Neal Stephenson's Snow Crash, Google Earth CTO Michael Jones claiming the inspiration was the tricorder, and Mark Aubin claiming it was Powers of Ten. Get your stories straight, guys :-)
For additional insight on the early development of Keyhole/Google Earth, see this 18Apr06 weblog post by Avi Bar-Ze'ev.