Google Middle Earth is a free, full-featured download that lets you explore the topographical majesty of the lands of Gondor, Rohan, and Mordor. Google Middle Earth’s impressive geographic mapping software is definitely the one product to rule them all.
With Google Middle Earth, you can measure the real distances from Hobbiton to Rohan, or from Osgiliath to Rivendell. And you don’t need to be a Dunedain Ranger to track your way home from the Watch-tower of Amon Sul. Mark your favorite areas, like the Black Gate, Isengard, or the Dark Tower. Zoom in on Minas Tirith or Helm’s Deep. See more of Isuldur’s land than you could from the top of the Tower of Ecthelion.
… schade, daß Google selbst nicht draufgekommen ist 😉