Sprol
(with comments)

Another blog that focuses on Google satellite images: Sprol.

Sprol is a planetary sightseeing blog. Visit some of the worst places in the world via satellite imagery. Our mission is to use space imaging to show people the visual macroscopic effects of our decisions and behavior. Since previous generations have not had the advantage of this viewpoint it is our responsibility to use it wisely.

This one is more serious than Google Sightseeing.