Foursquare Is Now Irrelevant, Thanks To Facebook's 'Nearby' Update

Facebook just home-brewed its own Foursquare - and the giant social network isn't stopping there. Places, Facebook's first "Foursquare-killer", got nixed last year. Now the company is back in the mobile check-in sphere and it's way better prepared.  With an update to a quaint little tab called “Nearby” on Monday, Facebook’s expanding mobile strategy is finally taking shape. Watch out,...