You've seen plenty of graphs on this blog describing the blogosphere. What I'm showing below is an initial application of the system I use to generate those maps applied to some data from a message board. This particular board discusses the Sony Playstation (I'll post more about it later). I actually think that this is a slightly more interesting graph in terms of the social network. (Boardscape is a term coined by Ron Kass of Boardtracker).
Note that the data here is just a sample - I'll look at getting a more comprehensive set sometime soon.