Interactive Maps

Recently I have found some awesome websites that deal with maps. I figure that these maps and GPS's go hand in hand.

Flash Earth : This is a mix of Google maps and Virtual Earth.
Virtual Earth: This is Microsoft's version of google maps, its really pretty good.
Google Earth : This site is sweet, Google earth gives you a birds eye view of the world. Download a free copy at this link.
Google Maps Mania : This site shows everything that people have done with google maps. If you browse through the site you can find a ton of cool maps.