Michael Arrington over at TechCrunch has written about the use of Google Earth to help in the search for missing adventurer, Steve Fossett.

There are already projects out there which rely on using idle time on individual computers to solve various scientific problems – see for instance World Community Grid. A nice, effortless and inexpensive way to contribute to the good of humanity. Projects such as Amazon’s Mechanical Turk, which Michael speaks about, are a social extension on this kind of thing.