More than half of all American adults were online political users in 2010: “Fully 73% of adult internet users (representing 54% of all U.S. adults) went online to get news or information about the 2010 midterm elections, or to get involved in the campaign in one way or another. We refer to these individuals as “online political users” and our definition includes anyone who did at least one of the following activities in 2010:

• Get political news online – 58% of online adults looked online for news about politics or the 2010 campaigns, and 32% of online adults got most of their 2010 campaign news from online sources.
• Go online to take part in specific political activities, such as watch political videos, share election-related content or “fact check” political claims – 53% of adult internet users did at least one of the eleven online political activities we measured in 2010.
• Use Twitter or social networking sites for political purposes – One in five online adults (22%) used Twitter or a social networking site for political purposes in 2010.”