Amazon is using their Mechanical Turk service to assist in the search and rescue for missing aviator Steve Fossett.
Got this email from Amazon:
Details of the task to perform are available here:
Steve Fossett Missing: Help find him by searching satellite imagery
I hadn't heard of it before, but TechCrunch has a story on how Amazon did something similar when Jim Gray was lost at sea.
Very interesting and noble use of crowd sourcing.