Social Network use by the Adult Americans on the rise: Surveys

Adult Americans who use the internet are joining social networks at a rapid rate and the number with an online profile has quadrupled in the past three years, according to a new survey.
Thirty-five percent of US Web users aged 18 or older have a profile on a social network such as Facebook, Myspace or Linkedln, the Pew Internet and American Life Project Survey Found.This is a significant increase from eight percent in 2005.While the number of online adult.Americans loggin onto social networks is rising, they laged behind the number of online American teens who do so, the Washington-based Pew Research Centre said in report released on Wednesday,
Sixty-Five percent of online Americans aged 12 to 17 years old use social networks,it said.Adults, however, still make up the bulk of American users of social network websites because they make up a larger portion of the US population than teens.