Wall Street Journal Bank Failures Map
The Wall Street Journal have produced a very nice visualisation of bank failures in the USA in the last two years, using Google Maps.
The size of the circles on the map represent the value of the bank's assets at the time of failure. The circles are interactive and, if you click on them, load information about the bank into the map sidebar.
The map sidebar has a neat slider which you can use to view the bank's collapse over the last two years. The slider includes a 'play' button which will animate the failures over the two years. Under the map the data is presented in tabular form, with sortable column headers.