Washington: Eleven percent of Internet-connected US adults updated their status online using Twitter or another social network in December, nearly twice as many as in May, a survey released on Thursday said.
The survey by the Washington-based Pew Internet and American Life Project also found that the median age of a user of micro-blogging service Twitter is 31 years old as opposed to 27 for MySpace, 26 for Facebook and 40 for LinkedIn.
Pew said that 11% of the 2,253 Web-connected adults surveyed in December said they use Twitter or another service to share updates about themselves, up from 9% in November and 6% in May.
Twitter allows users to send messages of 140 characters or less through a computer or mobile phone to other users. Social networks such as Facebook also feature a status update option.
Pew said that unsurprisingly, the use of Twitter and similar services drops off with age.
It said 19% of online adults aged 18 to 24 years old said they have used Twitter or similar services.
Twenty percent of those aged 25 to 34 said they have done so, 10% of 35 to 44 year olds, 5% of 45 to 54 year olds and just 4% of 55 to 64 year olds.
Pew also said that 13% of Web-connected Americans surveyed said they have created a blog.
The Washington-based Pew Center said the survey had a margin of error of plus or minus two to three percentage points.