Facebook employed them. Both sides have "confessed". See the Daily Beast article - http://www.thedailybeast.com/blogs-and-stories/2011-05-12/facebook-busted-i

Facebook employed them. Both sides have "confessed". See the Daily Beast article - http://www.thedailybeast.com/blogs-and-stories/2011-05-12/facebook-busted-in-clumsy-smear-attempt-on-google/ http://www.thedailybeast.com/blogs-and-stories/2011-05-12/fa... [and they give credit to USA Today - http://www.usatoday.com/money/media/2011-05-06-google_n.htm http://www.usatoday.com/money/media/2011-05-06-google_n.htm] FB complaining about privacy abuses just broke my irony meter.