] According to Forrester Research, bloggers tend to be
] affluent (average household income: $57,900), influential
] with peers, and broadband-connected. 25% of all bloggers
] are ages 18-24 - this group is 9 times more likely to
] have their own blogs.

...or at least care to identify themselves as such.

And naturally, the question of this research: what is a blog? Is this a blog? Is a livejournal a blog? If I have memestreams and livejournal "blogs" -- and say two other similar public accounts -- am I one blogger?