CNET slide show:
Google Earth 4 beta
This splendid mapping and sightseeing tool puts the whole world in your hands, then hands over the tools to let you build your own world.
Slide 8 of 12
Craft your home
Google Earth 4 beta allows you to add models from SketchUp, opening up new ways for realtors, landscapers, and city planners to work. For instance, an architect could create a 3D image of your dream house using SketchUp, upload it to 3D Warehouse, and send you a link to view in Google Earth. We loaded a SketchUp user's model of a Craftsman bungalow into a San Francisco neighborhood.