NOAA - 2011 Tornado Damage Imagery
The NOAA has released aerial imagery of the damage caused by this year's high tornado activity in the US.
Here is a location in Birmingham as seen in Google Maps and in the new aerial imagery from the NOAA:
Using Google Map it is possible to browse the uploaded imagery by location. If you click on one of the red square overlays on the map you can select to view the aerial imagery for that location in either low or high resolution.