Gizmodo has a nice and (imho) accurate criticism of Facebook's current strategy—being everything to everyone.
When an entire generation of computer users first poked our doe-eyed faces onto a young internet, many of us were greeted with a single, encompassing, monolithic face peering back: the AOL Home Screen. To call it a young internet isnt even fair—it was a mature, thriving AOL. It was ubiquitous, it was powerful, it was everything—and it ended up destroying itself, too flawed by design to last. And someones trying to rebuild the Death Star.