"Based on input and observation at Bloggercon and a read of the Perseus data, here is my first pass at a classification at types of blog authors (as opposed to readers) for discussion by anyone who cares to respond..."
Not a bad list. Though I'm not even sure where I fit, so maybe it's lacking a category -- the daily (or so) observation/pointer/news/personal-but-not-very-personal/whatever's on my mind category.
Speaking of, lately I'm much more #7 ("Business blogs behind the firewall"). While it's not obvious here, I've been blogging a lot.