As Google often does after a major disaster, they’ve reacted quickly and have already posted some imagery (via GeoEye) of areas in Alabama that were hardest hit by the tornadoes a few days ago.
You can view the imagery a variety of different ways:
• Albums: View a before-and-after comparison of various areas inside of this Picasa album.
• Maps: This collection on Google Maps has quite a bit of information, including the new imagery.
• Earth: View the imagery directly in Google Earth using either the Tuscaloosa KML or the Jefferson County KML. Other KML files can be found on the Maps collection page.
As with Google, our hearts go out to those affected by this disaster.