I've recently become interested in psychogeography, "the study of the effects of geographical settings, consciously managed or not, acting directly on the mood and behaviour of the individual". First proposed by Guy Debord in his Theory of the Derive, psychogeography is once again popular, thanks especially to location-aware devices such as cell phones.
I attended a conference last spring entitled psy.geo.conflux, which first piqued my interest in psychogeography. I am in the final planning stages of my first psychogeographical experiment to take place amongst the stacks of Rotch Library at MIT. The goal is to get people to pay attention to books on library stacks in the same way that psychogeographers pay attention to their urban society. I hope to start this project in February, 2005.