Recommended reading: Pew’s June 1, 2011 “Twitter Update” report, which I missed a couple of weeks back. You can download the report for free. Pew is the most credible source out there on online media use.
Verbatim, here’s Pew’s overview:
13% of online adults use the status update service Twitter, which represents a significant increase from the 8% of online adults who identified themselves as Twitter users in November 2010. 95% of Twitter users own a mobile phone, and half of these users access the service on their handheld device.
As in our previous research on Twitter use, African Americans and Latinos continue to have high rates of adoption of the service. Fully 25% of online African Americans use Twitter at least occasionally, with 11% doing so on a typical day.
Additionally, Twitter use by internet users ages 25-34 has doubled since late 2010 (from 9% to 19%) and usage by those ages 35-44 has also grown significantly (from 8% to 14%).
About the Survey
These findings come from national survey findings from a poll conducted on landline and cell phones, in English and Spanish, between April 26 and May 22, 2011 among 2,277 adults (age 18 and older). The margin of error among the internet users is +/- 3.7 percentage points.
The Pew Internet & American Life Project is one of seven projects that make up the Pew Research Center, a nonpartisan, nonprofit “fact tank” that provides information on the issues, attitudes and trends shaping America and the world. The Project produces reports exploring the impact of the internet on families, communities, work and home, daily life, education, health care, and civic and political life.