<http://schema.org/url>
<http://thenextweb.com/socialmedia/2012/02/09/this-hack-tells-you-whos-your-most-valuable-friend-on-facebook/>
<http://thenextweb.com/socialmedia/2012/02/09/this-hack-tells-you-whos-your-most-valuable-friend-on-facebook/>