I posted recently about the Murdoch/Vivsimo story reported in the Pittsburgh Post-Gazette. This post on a web based message board (Yahoo! Message Boards: LOOK) generated a most of traffic to that post. As we think more and more about the conversational structure of the blogosphere, rather than thinking about it as a walled garded, we need to think more and more about how it integrates with other spaces on the web.
I've been saying for a long time that those interested in analysis over the blog space are going to be knocked out when they see the potential of other similar spaces, most noticably the message board space. They are going to see topics of conversation which are more richly represented in other spaces, they are going to see different (and stronger) community structures, and then they are going to have fun integrating analytics from both.
Here are a couple of examples. The first trends 'murdoch', the second trends 'xbox'.

Notice that while there are echoed trends (the large peak to the left), there are also trends which are unique to each source. For example, Usenet appears to show an upwards trend to the end where as Boards and Blogs show a steady flat trend.
Here we can see that a higher percentage of Boards are focused on the XBox. In addition, there is an initial peak - an anticipatory burst - which preceeds the main launch peak. Notice too the leap in Usenet posts.
To give full credit to everyone involved in the conversation, visualization like those posted on Anjo's blog (just been updated I see) need to include links at least to external (non blog) pages. The fact that a message board concerning LookSmart is discussing a story I'm interested in (Vivisimo) is certainly a thread I'd like to follow.
(These images are copyright Intelliseek).