What's Your House Worth?

This is what usually happens the first time you visit Zillow.com: You type in your address to check out the Zestimate, an approximation of your home's market value. It appears in a little pop-up superimposed on a photographic map of your neighborhood. The number might make you smile; it could make you angry.

From the current issue of Fortune Magazine.

Get a "zestimate" here of your house, or your neighbor's house, or your boss's house.