I studied the costs for such an approach on facebook, using amazon mechanical turk. 80% success on comments, 100% on likes. Details on http://en.blog.guylhem.n

I studied the costs for such an approach on facebook, using amazon mechanical turk. 80% success on comments, 100% on likes. Details on http://en.blog.guylhem.net/post/18384978350/mechanical-turk-facebook http://en.blog.guylhem.net/post/18384978350/mechanical-turk-... I wonder how frequent it is.