The well designed map displays unemployment, foreclosures, bankruptcy, or a composite “stress index”, by county. In the upper right you can change the period the %-change is calculated for (try it, it’s pretty nifty).  To look at data over time, click on the “Oct.2007 to present” option and a historical slider will appear at the bottom (very slick to play with). Double click on a region to zoom in; click & hold to move around.