This is an amazing look at Google's efforts to "ground truth" their maps. While unlike other thematic maps I have posted here, this story helps us to see and think about the ways in which places are all imbued with information--information that can be represented digitally and that supports our movements through virtual and physical space. But not just our movements. And that's what I'm thinking most about in relationship to maps as arguments. Google is working to distribute collective intelligence across the map so that way finding and place finding are easier. But this same infrastructure could be used to layer thematic data that would express our collective beliefs, desires, hopes, and tragedies. We might move through the physical world and, using Google's map, see not only that Kentucky Fried Chicken is on the next corner and that the road curves slightly up ahead, but also that this part of the city has seen a dramatic reduction in crime, or an increase in youth civic involvement, or a recent shift in political affiliations, or an influx of talented musicians. How would this change the way we move through and interact with physical places?