Ad funded social networks are set to drive revenues in the mobile user generated content (UGC) space by 2013, according to research released this week by Juniper Research. The firm said the total value of the UGC market, which comprises social networking, dating and personal content delivery (PCD) services, is forecast to rise from nearly US$1.1 billion in 2008 to more than US$7.3 billion in 2013. Advertising, long proclaimed as the great hope for future revenue growth, is estimated to account for nearly one third of total revenues in the UGC space by the end of 2013, and more than half of mobile social networking revenues, according to Juniper. Article