Common Census

This site is a neat place for the ultimate map nerd I am.... The common census is trying to draw an approximation of the map of the United States, based on what people enter in as their local and regional city hub. When data is collected, it's plotted out on a map that's growing more and more detailed as more and more people contribute their data. It's also doing it by sports teams to see where folks affinities lie. It's very interesting, if very imperfect at this point. A quick couple minute survey of where you live and where you think you live will help move their site along. (All free, no obligation or anything...)