Google today introduced the long waited 3D modeling software Sketchup 7 

SketchUp is software which is used to build 3D models of houses, killer robots, furniture, trees,  anything. It will be very useful for Architects and engineers who use to design buildings and other structures. Woodworkers use it to plan their projects. And for lots of people who use to figure out where to put their furniture. SketchUp is easy to learn, it comes in free and Pro versions.