Status update demographics accross major services. 19% of internet users say they use Twitter or another service to share updates about themselves, or to see updates about others. This is almost twice as much as in the previous surveys from December 2008 and April 2009, where this nomber was only 11%.
Gadget people are using status-update services. The more devices someone owns, the more likely they are to use Twitter or another service to update their status. Use of status-update services by device count:
39% of users with more than three internet-conncted devices