Dodgeball

Check-in phenom Foursquare just passed 3 million users, a milestone that cements its growing lead in mobile social networking. But how did it outrace competitor Gowalla, which was born at the same time and with arguably better technology? By having the right real world social networks, of course.

In just one and a half years, Foursquare has taken social networking to a new level by offering geo-location services that allow users to notify their friends about where they are shopping, eating or drinking. And it hasn't gone unnoticed. CEO Dennis Crowley shares his thoughts on the recent launch of geo-location application Facebook Places.

Dodgeball: perhaps no grade school sport is infused with more cringing memories and dark humor. And the story of 12-year-old Shane Reese surely has both elements, along with a little "what were they thinking?" and could spell doom for the activity's future in New York schools. The boy's been...