Google today announced the launch of Google Earth, Google's new satellite imagery-based mapping product that combines 3D buildings and terrain with mapping capability and Google search. Based on Keyhole technology, Google Earth enables users to fly from space to street level views to find geographic information and explore places around the world.
Key features of Google Earth include:
3D buildings in major cities across the United States
3D terrain showing mountains, valleys, and canyons around the world
Integrated Google Local search to find local information such as hotels, restaurants, schools, parks, and transportation
Fast, dynamic navigation
Video playback of driving directions
Tilt, rotate, and activate 3D terrain and buildings for a different perspective on a location
Easy creation and sharing of annotations among users
http://earth.google.com