Red-hot Foursquare struggles with uptime

The red-hot location-based service Foursquare is supposedly bringing in 15,000 users a day and recently passed the 1 million user mark. It seems to be having problems keeping up, though, as there are increasing reports on Foursquare downtime, recognized by …

Zuckerberg shows CEOs how to overshare

Mark Zuckerberg, Facebook’s baby-faced founder, is under a lot of criticism for his social network’s personal privacy policies. But you have to give the guy this: You don’t have to guess where he’s coming from. Zuckerberg shares online more than …