No houses in my town. I put in some friend's addresses in Minneapolis/St. Paul. Interesting to see how much they pay in property taxes. I thought the comps were off base, often coming from the wrong neighborhoods.
An article in the Sunday paper here gave a nice overview of Zillow.com
Basically, it says the database has over 2 terabytes of data on 60 millon homes in the US. They want to have 100 million homes by the end of the year. That will account for some areas not being up to date or not included yet. They do not plan on charging for the site but banner ads could creep in since it would be a huge income to the site with very little work. Overall, the article was pretty favorable.