Spotted in the NYT by the Mrs., here's a cool new real estate website:

http://zillow.com/

They provide sales history, property and tax info, and a "Zestimated" property value based on comps, and more. They say they have data on over 60 million properties.

I looked up the house we owned in Florida, and according to the "Zestimator" it has appreciated 85% in a little over five years since we sold it. The house we owned in South Knoxville has appreciated 73% in eleven years.

The "My Zestimator" feature lets you refine the "Zestimate" by correcting existing data, adding your own data about improvements or other features, and selecting different comps.

And the best part is that it's free, there's no registration, and it doesn't require any personal/contact info. Not sure how long that can/will last, but it's pretty nice.