Neil Johnson from Oxford visited Ann Arbor this week and today he gave a talk at the Complex Systems seminar series. He described some very interesting research that his group has been doing to model complex network/agent like systems, such as trading behavior or traffic patterns, guerrilla warfare, and relationship building. His Arxiv papers look very intriguing.
It's interesting to see how physicists have taken to sociometry and agent networks so enthusiastically. Basically there is a whole lot I need to learn.