Desktop Earth - You should run it as admin.
EarthView - Free Cloud Data Download
Earth 3D Live Wallpaper - Earth 3D Live Wallpaper helps you capture the beauty of mother earth.
TerraTime - TerraTime provides an amazing, interactive, real-time virtual Earth.
Rotating Earth Wallpaper HD - Rotating Earth Wallpaper HD gives you a full-fledged view of the earth in 3D.
EarthDesk - Xeric Design, Ltd. is a leader in global time and mapping software.