BranchOut allows users to see which of their Facebook friends (or friends of friends) work at specific companies. Unlike LinkedIn, it doesn???t require users to build a professional network one person at a time. Rather, they simply connect to their pre-existing Facebook graphs. The interface works a lot like LinkedIn from there: users can fill in their work histories, send messages to their connections, collect endorsements and request introductions to friends of friends.
Article sent to me by LinkedIn. Nice.