HousingMaps.com Not Refreshed Enough to be Useful

Housingmaps.com is a creative mashup that combines Google Maps and Craigslist listings to show where people can find housing.‚  Unfortunately, it is not refreshed often enough to be useful.‚  I looked today (November 19th) at places to live and the most recent Craigslist listings they had available was November 11th.‚  All of the good place are usually taken in 1-2 days, so the leftover ones are mostly crap and expired listings.‚  Housingmaps.com should refresh its data every 2 hours instead of weekly!