Bloggers from the affluent brigade

I note that Technocrati are going a profile of bloggers.It is in five parts and the first installment tells us that

Bloggers are not a homogenous group, but they are an educated and affluent one: three out of four U.S. bloggers are college graduates, and 42% have attended graduate school. They skew male, and more than half have a household income over $75,000.

Ht-Adrian Monck

So maybe blogging is going down the same route as print journalism then