<http://schema.org/description>
"\r\n\r\nFacebook has just announced that they now have 500 million active users, a substantial percentage of the world, and far more total users than the US has citizens. Using the most ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/socialmedia/2010/07/21/facebook-hits-500-million-active-users/>