The audience for YouTube and other video sharing websites has risen sharply in the past year, with almost half of online adults logging onto such sites, reports a study from Pew Internet & American Life Project. In a national phone survey of 2,054 adults, 48 percent said they have visited a video sharing site, up from last year’s 33 percent. Now, nearly a third of young adults and a fifth of online men visit these sites. (PaidContent)