Mash-up Heaven

Take a look at some "Mashups for the Greater Good"
http://www.netsquared.org/blog/marshallkirkpatrick/new-mapping-tools-open-a-world-of-possibilities

www.HomePriceMaps.com compliments
the HousingMaps site quite well.

while HousingMaps integrates Craigs list homes currently for sale and rent
with Google Maps, www.HomePriceMaps.com integrates how much homes SOLD for
with the google mapping technology

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