johnser - 7:02 pm on Sep 13, 2012 (gmt 0)
Google can't crawl Facebook, Twitter, or most Linkedin data
Are you 1000% certain on this Brett?
Does it crawl the likes & tweets appearing on multiple websites (it sees the content of iframes according to Jill Whalen...)
While it doesn't crawl, hasn't it access to many Facebook users due to it's purchase of Zynga?