nuetral milk hotel's In The Aeroplane Over the Sea is ten years old. Pitchfork shares some stories on it.
Pitchfork Article
housingmaps.com
I sure would have utilized this application when looking for apartments last year. Real estate folks stress how important location is. "Location, Location, Location" But traditional web real estate sites have displayed single properties on maps and generally missed the boat displaying apartments databases. Combining this missing feature with craigslist, the free forum for posting apartment adds, is a great way to bring geographic housing searches en masse. In the NYC area this is particularly useful since brokers charge such high fees.
http://www.housingmaps.com/