Want to draw a house? It can happen with Google SketchUp. The 3D modeling program offers users the ability to use basic shapes in order to create a number of different objects, including buildings and other structures. One particularly nice feature of the program is that visitors can also add textures to simulate wood, concrete, and grass. After that, users can also see their models in Google Earth, if they so desire. This version is compatible with computers running Windows XP or Vista and Macs running OS X 10.4 and newer.