You can now see a high resolution satellite view of Darfur refugee camps that has been declassified. First you download Google Earth, then you can do a search for refugee camps or for Darfur.
With the joystick-style navigational controls, you can move the satellite view in four directions, as well as closer or farther away, or you can just click on the screen and drag whatever you want to see closer. If you zoom close enough to the Darfur villages you can see white squares that are tents. You can also see recently burned villages.
There are also some interesting links on this thread.