Like locked cell phones and copy-protected music, Facebook is on the wrong side of the open-network debate. Facebook is a sealed bubble. Facebook users are locked into Facebook, just as iTunes locks music fans to Apple's iPod.
Enterprises lack understanding around value added and "competitive advantage" derived from the social tools such as social bookmarking & social networking sites. This is driven by fear.
"If Facebook allowed users to differentiate between their professional and social relationships and control what parts of their profile are visible based on relationship type, it" could be the end of LinkedIn...