Catching up on my subscriptions while watching Chris play Fable 2 and found these two blog analysis tools:
The Typealyzer does a Myers-Briggs analysis of your blog based on your writing - not surprisingly, it classifies me as an ESTP. I suspect that many blog authors are an "E" in any case - a blog is public, after all. I'd be curious about the demographics here. It's been a long time since I took a Meyers-Briggs test, so I don't remember what my classification was...I should see if they match this result.
The Gender Analyzer guesses at the blog author's gender. Apparently, I write like a man.