Trulia (US real estate search people) and Stamen Design (they of the Oakland crime map) have collaborated to produce a beautiful map mash-up of property growth in the US. The map itself is a lovely thing to click around, but what makes it really interesting is the way the blog links it to local historical and civic information. Fascinating for people moving to an area - the heritage of your local area is compelling. And a brilliant resource for local (and not so local) historians.
Thanks to Andy Pipes for the link.
