Tim Bray is ensconced at O'Reilly's FooCamp. One session he attended was the Technorati/Blogdex death match. I'm always interested in any nuggets that come out about each of these services, because they're fairly opaque operation. Sure there's a gut sense of how they work (calculate degree rank of a site or post, provide interpretation), but if you know of any published literature on the hairy details I'd appreciate hearing about them.
While I find the services that Technorati and Blogdex provide interesting, I'm also interested in what exactly they're telling us. Hard to say without any details and also hard to independently verify.
Finally, one provocative thought from Bray: "It’s more important to know how popular something is than to know what it’s about."