Good Gear Guide
In Pictures: 10 cool and useful Google Maps mashup...
House-Hunt Like a Pro
Trulia Local is a handy Google Maps-based tool that allows you to search for properties while factoring in such potentially relevant information as nearby crime rates, schools (and their ratings), and amenities such as restaurants, banks, and gas stations. Data layers are available for most major cities, and you can consult the Trulia site's Price Reductions Map for a heat map that identifies the average number of days a listing remains on the market before the seller makes the first cut in asking price.
In Pictures: 10 cool and useful Google Maps mashups