Zillow recently launched a Local Info tab which delivers a wealth of information at the national, state, city or even neighborhood and zip code level.  For example, you can see percentage of homes that have experienced a price drop or value per square foot.  There is also data available such as demographics of the neighborhood and school info. 

Now the really cool part.  We've added an "embed" button so with a click of a button you can take the a local information chart you custom created, and automatically insert it into your blog.  The Local Info tab has enough information that your can customize to have local and interesting blog posts for weeks!