Online video users are more loyal to network TV Web sites than user-generated content sites, Daisy Whitney reports for TVWeek.com
. According to a Nielsen Online survey, only 24% of NBC.com viewers also watch content from ABC.com. Other percentages of shared viewership are lower than that, with only 4% of ABC.com viewers saying they also watch content from Fox Broadcasting online. Meanwhile, user-generated content sites share a huge majority of their viewership with YouTube, with as many as 84% of MySpace.com and 93% of Veoh viewers also streaming content from the Web video giant.