Have you checked out google today? Google showed us the power of their Ajax driven mapping application a few months ago when they added lunar maps seemingly overnight.
They have excelled today though: To coincide with the arrival of the Mars Reconnaissance Orbiter at Mars, they have released updated the maps application with Elevation, Infrared, and traditional visible light versions of Mars. Check it out and see what you can see. Hopefully not houses and streets.
Interestingly enough, since the high resolution maps were added to the UK service a month ago, It's been noted that a number of _ahem_interesting locations are no longer available at the same high res they were in February. TurboTas can't help wondering if this is due tosomeone somewhere pulling strings at Google.