We're happy to chat up our Facebook friends on the web, but empowering them to track us down in person makes that virtual social experience feel a bit too real. Perhaps that was the reasoning behind the mysterious disappearance of the company's new Find Friends Nearby feature, which bit the dust yesterday just as quickly as it first appeared. During its hours-long tenure, the new tracking tab didn't give precise friend location information, but did provide a list of buddies in an undisclosed vicinity, making it possible for some not-so-top-tier contacts to realize that you're still in Tulsa, and didn't actually make that move to Timbuktu. Whatever the reason, Find Friends Nearby is now very much lost, but it could theoretically make its return at any point in the future. For now, you'll need to return to keeping an eye on acquaintances the old-fashioned way.