Craigslist-GoogleMaps combo site

A guy called Paul has come with a Craigslist-GoogleMaps combo site housingmaps.com.
The site provides the Google maps view of all the listings at Craigslist for the specific city you select.
At this time the website provides the following search filtering:
1. for rent, for sale, rooms or sublets
2. City: Has over 35 US cities and includes Toronto.
3. Price Range: You cannot specify a price range, but you can pick from the pre-defined list of price ranges.