As I’ve mentioned earlier, I read a lot of feeds. By organizing them in categories, I can easily get an idea of what field is hot. For example, yesterday, upon looking at Bloglines, my RSS aggregator, I knew that something important was happening (or not, considering that it was April 1st) in the search space as the feeds I had classified as search-related seem to have more than the usual number of entry. I call this concept blog chatter. Over the past few weeks, with the 9/11 commission running its public interviews, the word chatter has come back to the forefront. Basically, it means that the noise is increasing. Thanks to the immediate or almost immediate updates given by RSS feeds, it is now possible to track what the blogosphere is talking about. Of course, this is hardly news to users of Technorati, Blogdex, Popdex, Daypop or similar services. However, one thing that is missing is a graphical representation if this chatter, similar to what Newsmap used to do. Newsfilter does an interesting job of creating instant layout based on news chatter in the Google News service but I’ve yet to see anything similar for the blog world. This is…