Starting on December 5, the Defense Advanced Research Projects Agency will award $40,000 to the first registered team to correctly report the location of ten eight-foot-diameter red weather balloons distributed randomly across the continental United States. From the challenge website:

To mark the 40th anniversary of the Internet, DARPA has announced the DARPA Network Challenge, a competition that will explore the role the Internet and social networking plays in the timely communication, wide area team-building and urgent mobilization required to solve broad scope, time-critical problems.

Personally, I think 99 red balloons would’ve been better, for marketing purposes, than 10. I guess that would take way too long. [via Hack a Day]