Americans spend almost a quarter of their time online on social networking sites, says a Nielsen report released Monday.
According to the report — which combines data from Nielsen mobile and online meters, buzz data and a survey — Internet users spend more than twice as much time on social networks (including blogs) as they do on online games, the next top web destination by time.
The most popular social network as measured by Nielsen online meters is Facebook, followed by Blogger, Tumblr, Twitter and LinkedIn.