Emergent properties of human groups

Just as ants interact to form elaborate colonies and neurons interact to create structured thought, groups of people interact to create emergent organizations that the individuals may not understand or even perceive. I recently went to an interesting seminar on this topic in the Psychology Department at Univ. Wisc. given by Robert Goldstone at Indiana Univ. He has set up an interesting web based experiment to test agent based models of emergent properties of human groups. You can read about and also become a subject in the experiments here.