BuzzLogic tracks blogosphere influencers
BuzzLogic helps you track what people are saying about your company or product on blogs, and who are the most influential commenters. For each writer, BuzzLogic tries to determine who influences him or her, and who they influence in turn. The tool helps marketing pros focus their communication. It also lets them record communications to a commenter, and track them, like radioactive tracers through the blogosphere. If it works as advertised... huge.