Time for Facebook to start colonizing other planets
If it's not privacy and it's not a new rival, why is Facebook losing customers in America? Because there's no one left to go after. As Inside Facebook's Eric Eldon points out, Facebook's growth always stalls when it hits 50 percent market penetration within a country. Facebook is now experiencing something unprecedented in the short history of social networking—it has captured every plausible user in several countries, and the only people who are left are folks without Internet access, people who do have access but don't spend a lot of leisure time online, and the few lonely die-hards who swear they'll never join the site no matter how many times I exhort them to do so.