This is what the Web is all about!
http://paulrademacher.com/housing/
Darren Barefoot calls this a ‘mashup’ between Google Maps and craigslist. I know that Google Maps has exposed their API for this sort of development, but I’m interested to see how craigslist deals with this. They haven’t seemed too friendly about people ‘ripping’ their site content. See CLSearch for example.
I’m sure they’ll come around to encouraging things like this, because the value of craigslist has just been multiplied by Google Maps.