After the Earth, the Moon... now MARS !
PDF version
If you have not been checking up on the Google Labs recently, then you may not have noticed this pretty cool new development effort from Google: Google Mars.
Very similar to Maps and Moon, with different views (elevation, visible and infrared) and with additional educational information about its mountains, plains, canyons, regions, craters...
Check it out for yourself at http://www.google.com/mars/