Cameron Marlow posted Audience, Structure and Authority in the Weblog Community, an excellent research paper discussing methods of determining the influence and importance of weblogs. Basically, he shows that the number of permalinks to a weblog may be a better indicator of authority than blogroll frequency. Many newer weblogs — including mine — appear to have more influence than older, more established weblogs. This theory goes against Clay Shirky’s widely-accepted conclusions about power laws and inequality in the blogosphere.
Cameron expects debate, so go read the PDF and give him your feedback.