Large satellite view of Africa

http://www.earthsat.com/ArcIMS/africa/viewer.htm

Be sure to activate the 'Populated Points' layer, it makes navigation much
easier. The level of detail is not optimal (this is a demo for a
commercial product), but it is still one of the nicest view I have seen
that covers the continent extensively at that level of details. Landsat or
STS pictures are more detailed, but they generally cover only a small
spot, often with high angles. This one gives you the whole continent. It
is actually a mosaic made from rectified images. I wonder how much the
full-detail commercial product costs.

And if you like the picture, you will like the simulated one, calculated
every 10 minutes with cloud cover updated eight times a day :

http://www.ruwenzori.net/earth/earth1024.html
http://www.ruwenzori.net/earth/earth1600.html