Studies by the Pew Internet & American Life Project show that 33% of adults ages 18 to 29 are updating their statuses online using Twitter and other popular social networking websites. These findings contrast earlier studies by Pew that users ages 30 to 49 made up the primary group of Twitter-users.
Further research indicates that younger audiences are embracing Twitter and constantly updating their statuses. In May 2009 Sysomos reported 66% of Twitter users who revealed their age were under 25.
The Pew study also shows a trend among those who own multiple Internet-connected devices: the more Internet-ready devices users have, the more likely they will update their statuses. Likewise, of those who own four or more devices, 39% use Twitter or another status update social network website. On the other hand, only 10% of users who own one device are updating their statuses.