CraigStats is a new Google Maps rental market mashup for the city of San Francisco. It combines rental listings from Craigslist, Google Maps and FortiusOne's GeoIQ for heatmapping (see image to the right), along with several options to analyze the entire rental market or by micro-area of San Francisco. To learn more about Ethan Garner's inspiration to create CraigStats, take a look at "Overall Stats/Notes" -> "Why / Who did this?" It's an interesting story!
Other Craigslist Google Maps Mashups:
HousingMaps (The first ever Google Maps hack/mashup)
The Craigslist (Map) Navigator
[Found via Boing Boing]