Nice! Do you know if Gephi can do something similar to the summarization that we did using cluster diagrams? The whole "ball of hair" problem doesn't have any other real solution, I don't think (well, unless you use edge clustering, but that doesn't help in-group connections).

I'm 90% certain that it can, but I haven't worked with it in a while. I remember a setting in the display options that simply combined all the dots of one color into one large group.

Cool! I wonder how one could combine the best of both worlds... what we're really talking about here is a hierarchy of graph plots in which you can drill down to each node = graph at a lower level.