Keeping Up With the Joneses.

I live down the street from Usher. Funny thing is, I'm not lying. But every time I drive past his house, I wonder, how much is that house worth? It's beautiful!

Zillow Results for a street in Atlanta

I've found the answer in Zillow, a site that displays home pricing information over an interactive map (think

google maps). Since what you paid for your home is public information, this site makes it really easy to check real estate values as well as the number of bedrooms, bathrooms and overall square footage of a home.

If you're in the market for a foreclosure, the site also allows you to filter by foreclosures as well as homes that are up for sale.

The site describes the "big idea" as:

When the real estate service launched on Feb. 8, 2006, we tackled the first question most home buyers, sellers, and the curious ask: "How much is this home really worth?" Zillow calculates a Zestimate® home valuation as a starting point for anyone to see — for free — for most homes in the U.S. So, using the Zestimate as the foundation, we built a Web page for each home and then filled it with data and maps and layered it with publicly available information such as comparables and tax information. We were breaking new ground — to package all of this information in one place for everyone to see, for free.