PR NEWSWIRE -- June 15 -- The social networking Phenomenon continued its stratospheric ascent. MySpace.com reached 50 million visitors in May and YouTube.com nearly doubled its traffic from April, reaching 12.6 million visitors. "The popularity of social networking is not expected to wane in the near future," said Peter Daboll, president and CEO of comScore Media Metrix. "This is a phenomenon we're seeing not only in the U.S., but also around the world. The challenge for social networking sites will now be monetization and how advertisers will respond to the global marketing potential of these sites." FULL ARTICLE @ SYS-CON