A study released by The Pew Internet consulting for the American Life Project on Thursday (21/10) indicates that 19% of Americans are enrolled in services such as Twitter, which allow readers to post messages that indicate thoughts, emotional states or activities as a result, calls online status.

The number is nearly double the 11% recorded in a similar poll in April this year, with growth driven by both mobile users of social networks as Internet users under 44 years of age. While the use of social networks in the United States grew from 29% of respondents in August 2008 to 47% in September this year, the use of services to update the status went from 6% to 19% in the same period of time, rather than tripling.

According to Pew, who has account on social networks is more likely to use instant status update, regardless of sex, race, age and education: 35% of those who use Facebook, MySpace and LinkedIn update Twitter, compared to 6% of those who have regard to any service.

The study indicated that Twitter has an average age of its users than Facebook – 31 years vs. 33 years, respectively. The popularity of services is also linked to greater participation of users with mobile connection to update their status: the share rose from 14% in December 2008 to 25% in September this year.

Via: AdWeek.