Blog readership has shot up by 58% in the last year, according to this article from the BBC. Obviously a lot more people are reading blogs, but only 7% of the 120 million US adults who use the internet actually maintain a blog.
My favourite line from this BBC article is this: "Blog creators were likely to be young, well-educated, net-savvy males with good incomes and college educations, the survey found." I'm still fairly young, I'm well-educated with a university education, I'm a male and I'm net-savvy. Where's that killer income I'm promised?