Zillow vs. MRIS: Who do you believe?

Trulia, Zillow, MRIS, Redfin. The list of sites where you can go to get real estate sales and appraisal information seems to be growing by the day. In an interesting post, local blog Bubble Meter weighs the pros and cons of Zillow and MRIS after both sites offered widely differing data regarding home prices in Prince William County.

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