Was reading Joe Write (a good blogger from Winston-Salem and frequent commenter on this site) and found a reference to this site:
http://www.housingmaps.com/
They took the real estate listings from craigslist, combined it with Google Maps and out came this very cool little app.
By the way, Google Maps is fast becoming my default site for all geo-related stuff.
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Befuddled 
Hey, thanks John — there are tons of gmap applications sprouting out there, here’s a recent one I found (it calculates how potentially screwed you are if a nuke drops somewhere (you get to pick where)): http://meyerweb.com/eric/tools/gmap/hydesim.html
Thanks Joe.
That’s pretty cool, or scary depending on how you look at it. I typed in the Latitude and Longitude for Winston-Salem and it looks like my house would be outside the “zone” during a direct hit on the city. I got up to 2000 kilotons (is that 2 megatons?) before my house made it into the red.
Maybe I should use this as a sales point if I ever put my house on the market:>