Metafilter comes in at 10 with 90 sites pointing to it. Out of a potential gazillion. The sheer number of blogs leads me to some ideas about weblogs 0. You haven't seen most of them 1. Most of them are pointing at other blogs you haven't seen 2.
People blog because static homepages are boring and they like goofing off at work.
The A-List is a team of renegade Bloggers that drive around in a black and red van helping the less popular Bloggers get more hits. No one ever says who they are because if you don't know, you aren't one, and therefore by saying a name you lay bare your lack of coolitude. Note that everyone except Ben goes by one name, so most people refer to him as BenBrown, just to make him fit. Certainly those are not a random selection of all blogs. Or you could just wait until the Bloggies get handed out and take THAT as the A-List.