Great and timely post at FlowingData: 21 Ways to Visualize and Explore Your Email Inbox. It has a lot of the papers that I’d already seen: Themail, MyMap, Enron Explorer, Perer & Smith. some new stuff, too, and stuff that i’d forgotten. I’m typing with one hand, and my arm hurts now.
I need to remember to look at USENET, mailing list and web forum analysis and visualization papers. Those three things are similar enough to e-mail corpora that there may be some useful crossover ideas.