The Pew Research Center's Internet & American Life Project has released 8% of Online Americans Use Twitter.
Here's an excerpt from the announcement:
Eight percent of the American adults who use the internet are Twitter users. Some of the groups who are notable for their relatively high levels of Twitter use include:
- Young adults—Internet users ages 18-29 are significantly more likely to use Twitter than older adults.
- African-Americans and Latinos—Minority internet users are more than twice as likely to use Twitter as are white internet users.
- Urbanites—Urban residents are roughly twice as likely to use Twitter as rural dwellers.