Some 15 percent of online adults use Twitter, with 8 percent using the social network on a typical day. The figure represents a steady rate of adoption since May 2011, when 13 percent of online adults were tuned in and using the microblogging service.

Those who are using Twitter are doing so more regularly; last May, only 4 percent of users said Twitter use was a part of their typical day. Late in 2010, that figure was just 2 percent, according to Pew Internet. These new insights into Twitter use and engagement are the results of their Twitter Use 2012 survey, in which they connected with 2,253 U.S. adults between March and April of this year.