Who uses blogs?

Surveys completed in recent months by the Pew Internet & American Life Project found that almost a fifth of teens who have access to the Web have their own blogs. And 38 percent of teens say they read other people's blogs.
By comparison, about a tenth of adults have their own blogs and a quarter say they read other people's online journals.

Irvine, M. (2005) Blogs can come back to bite you in The San Diego Union Tribune Associated Press