Google Sketchup

Google SketchUp is a fast, flexible, and fun 3D modeling application that allows you to quickly mock up designs of objects, buildings, or anything else you want. You can use SketchUp for fun to draw three-dimensional virtual neighborhoods or for practical projects, such as renovating a kitchen or building a bookshelf. Google broadens the power and novelty of this program by enabling you to share your creations with the public online; just upload your designs to Google’s 3D Warehouse Web site or drop them into Google Earth. In turn, you can view models made by other SketchUp users and save them to integrate into your own designs.