<http://schema.org/description>
"Sina has officially launched promoted feed advertising on Weibo\u00A0 in yet another attempt to get convert its 400-million strong microblogging platform into a moneymaker, according to ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/asia/2013/01/18/sina-weibo-activates-in-stream-advertising-in-quest-to-monetize-microblog/>