Matthew Hurst, Director of Research at Intelliskeek, shares a bit of the extremely powerful relationship analysis tools that Intelliseek has developed:

Upon examining the clusters, one can observe clear thematic groupings. These may be topical: the largest cluster is the social/political cluster; others include gadgets, the tech/web 2.0 landscape, etc. On the other hand, there are cultural and locale clusters. For example, Japanese bloggers, South East Asian bloggers, etc. Finally, there are communities that are by and large constrained by hosting systems. The blue clusters are communities within livejournal.

I wonder who will be the first to put these kinds of social network analysis tools in the hands of users. Intelliseek was recently purchased by VNU media and merged into their Nielsen consumer research activities. I'd imagine that much of the cool things they are developing will be only available to large marketing agencies and their brand name advertising clients.