You sound surprised? BranchOut is based on milking the LinkedIn social graph using FB as a viral spam host.

http://www.switched.com/2011/01/11/branchout-helps-you-land-...

They took a nice page out of the FB playbook, ie import as much data from your competitors before they cut you off. I've never understood why LinkedIn gave them access to the API to begin with.

http://techcrunch.com/2011/07/01/linkedin-cuts-off-api-acces...

Now, is there anyone here who fell for their spammy messages and actually USES BranchOut?