Msg#: 4532752 posted 11:38 am on Jan 4, 2013 (gmt 0)
This is simple to test. Launch two new mini-sites for the same keyword. Go after an imaginary keyword that you create so it isn't mentioned on any other website. Then send some Facebook likes and tweets to just one site and see what happens. I expect you will see your question has a more complicated answer when you consider the direct and indirect impacts.