<http://schema.org/description>
"Get ready to buy some shares. In this year alone, the global ad revenue from social networks is expected to reach $5.54 billion, eMarketer reports. A large chunk of that revenue, though ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/socialmedia/2011/10/05/ad-revenues-for-social-networks-could-reach-10b-globally-in-2013/>