Mr. Technorati, David Sifry is profiled in the most recent Business Week: (via Blog Herald)
The blogosphere today is about 30 times as big as it was three years ago. So just to give you some ideas on what that means: Every single day we’re seeing about 80,000 new people who are starting blogs. And we’re seeing about 900,000 new posts every single day. So that’s about 11 posts every single second that you’ve got to now index, you’ve got to score it, you’ve got to make sense out of all of its relevance, and you’ve got to push it to your servers really, really fast so people can stay up to date with what’s going on.