"By simply typing in the address of almost any home in the United States, Zillow provides an estimate of the market value of the property, the most recent sale price of that property, the approximate square footage, the values of the neighboring homes and a satellite photo of the whole street...Real estate has become more than a shelter for our families, our furniture and our creative impulses. It's an extension of our souls...To look up someone's property value is, perversely, to measure the contours of their very existence."
