If you didn’t read it the first time I mentioned it in my Useful Links, I suggest you look at Hubs and Connectors: Understanding Networks Through Data Visualization from Whitney Hess. The mapping concepts discussed there seem closely related to the following TED Talk by Johanna Blakley. We don’t connect like we used to.
So, all you really need to know about me is that I’m interested in web education and I like Buffy the Vampire Slayer.