My favorite of these is the Geography of Jobs from TIP strategies. The animation begins with a 2004 map of job gains and losses by metro area, which shows a clear rustbelt/sunbelt divide:
The map then shows the net gains and losses of jobs over the following five years, as a 12-month rolling average (to smooth out seasonal fluctuations and focus on the spatial variations). The impact of Hurricane Katrina is easy to see, and the subsequent crash of economies coast-to-coast is even more dramatic.
One silver lining is the revelation that Hurricane Katrina occurred during a time of relative propserity in the rest of the country. Had it taken place a couple of years later, the dismal situation would have been made even worse.