Google has captured a bunch of new satellite imagery that shows the devastation of the 8.9 earthquake and tsunami in Japan. You can see those images in Picasa or on Google Earth with a KML file (Japan Earthquake and Tsunami).
Separately Google has set up a “people finder” for those still missing in Japan. It also offers a “crisis response” page with news, emergency resources and updates. You can also donate there directly to the Japanese Red Cross.