Unfortunately, it's bitterly cold and raining, so it's a pretty crappy day for an outdoor demo.
Project Vote Smart is a Montana-based organization that aggregates poltiical information on its web site in order to educate voters. Right now, two guys are driving around the country in a big bus, trying to get the word out. Usually, they like to put laptops out so that passers-by can see the site for themselves; there's also a short movie, shown inside the bus, that introduces the organization to viewers. They started their non-partisan road trip in Florida last month, and they'll make it all the way to Ohio before they park the bus for the coldest part of the winter.
They'll be there til 3, if you want to brave the elements. Otherwise, it's worth checking out the site.