Want to Download a Google Middle Earth kmz file?  Click here.

 The current version (0.1.05) features:

• A low-res overlay of Middle Earth georeffed to Florence and Sarehole, UK 
• A second low-res overlay of Middle Earth to check if using the Mercator Projection makes a difference (thanks, Seerblue)
• Yet another overlay of the LOTR map. 
• A High-res overlay of Methedras and Nan Curunir 
• An overlay of Numenor, arbitrarily tossed into the Atlantic Ocean
• Placemarks of various important places.  These will probably replace the writing on the image at some point.

So, where does this stuff come from?  The great guys over at the Middle Earth DEM Project

Or, you could browse a Google Map

• PHP Based 

• getTileUrl Based 

  Neither work at the moment ;)