The average blogger may not be that 13 years old girl

"Exactly 61% of the blog readers that responded to the survey are over the age of 30, and 75% make more than $45,000 a year. In fact, nearly 30% of the respondents are between the ages of 31 and 40, and over 37% spanned the ages of 41 to 60. And nearly 40% have a household income of $90,000 or higher."

Read more in this eMarketer article about who are the Bloggers. Congrats Henry for the survey.