Jim Lanzone, SVP Search Properties at Ask Jeeves, gave an interesting presentation at Web 2.0, including some rather surprising numbers around blogs that matter. (Appearantly, it only takes about 50 subscribers to a given 50 to be in the top decile.)

Unfortunately, the version of the presentation that he shared had a few interesting slides removed, including one on searches by category/topic. I left a comment on the Ask blog requesting a full copy, but who knows if he'll see it and respond. If you happened to take photos of the slides, I'd greatly appreciate a copy of the full deck. moreinfo at buzzhit dot com. Thanks!