Remember Please Rob Me, the site that tried to raise awareness about the dangers of broadcasting publicly on Foursquare and other geo services when you are not home? I don't know that any burglaries ever actually occurred as a result of the information on the site, which in any case is not operational any more (it made its point).

But when you take the same idea of location broadcasting and put it on a service with more than 500 million users, it is no longer just academic People's houses will get robbed, at least in New Hampshire.

A burglary ring in Nashua, New Hampshire targeted people who checked into places on Facebook, alerting them when they were not home.

The police caught them after they broke into 50 homes and stole $100,000 worth of goods..