Who's reading blogs?

The latest Numbers Guy column tries to tackle the number of blogs out there.

With all the media coverage blogs are getting, you're bound to edit a related story. After reading this column, you'll find it easier to spot which numbers sound fishy. Are there 10 million blogs? Thirty-two million? How many of those are active blogs? And how many people are reading them?

In addition to pegging these numbers down, Carl Bialik also shares some readership numbers for the biggest blogs, including Gawker, Defamer, Little Green Footballs and Boing Boing. (Compare their numbers with New York Times' online readership, and, well, you can see that even the biggest blogs have a looong way to go.)