The Pew Internet and American Life Project today released a new report on the growing popularity of Twitter and other services used by people to post status updates to the Internet. According to the report, 19% of Internet users in September 2009 said they used Twitter or another service to share updates about themselves or see updates about others. The last time Pew asked this question back in April of this year, just 11% of those surveyed said they used Twitter or a similar service. In contrast, the percentage of Internet users who also used social networking sites such as Facebook and MySpace climbed only one percentage point, from 46% in April to 47% in September.
Pew also found that mobile Internet users were much more likely to use Twitter. While only 8% of Internet users that rely exclusively on wire-based connections used Twitter or another service, the number jumps to 25% when looking at people who access the Net over a mobile phone, laptop or other wireless device. And the more Internet-connected devices you own, the more likely you're on Twitter: 10% of people with just one Internet device used Twitter or similar services, compared with 19% for owners of two devices, 28% for three devices and 39% for four devices.
Despite the enormous growth experienced this year by Twitter, the median age of Twitter users remains 31 years old. According to Pew, this is five years older than the median age for MySpace users (26) and eight years younger than LinkedIn users (39). Facebook users, meanwhile, have started to get older; their median age jumped to 33, up from 26 in May 2008.
For more information on the survey, check out the Pew Web site.