<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/Website>
<http://thenextweb.com/facebook/2012/10/04/facebook-confirms-it-is-scanning-your-private-messages-for-links-so-it-can-increase-like-counters/?awesm=tnw.to_j5o8>