Now we've got rankings of blog networks. Given a relentless focus on advertising, where size does matter, will the commercial blogosphere eventually congeal into an oligarchy of of massive corporate concerns? Meet the new boss, same as the old one!!
Anyhoo, as these efforts to analyze largish (between 100s and 10s of thousands) sets of weblogs proliferate, I wonder if we'll start to see some open source tools for experimentation and independent verification. I'm not an open source zealot, but for independent researchers, it's hard to trust results based on closed systems. Maybe this year's Weblog Ecosystem Workshop will provide something in this area.