Google launched an international “Google Model Your Town Competition”. Every town that participates has a chance to be included in Google Earth's 3D Buildings layer where millions of people can see it. Winning town will win money for its schools, a Google-sponsored party for its modelers and plenty more. You can use free tools — SketchUp and Building Maker to make sure your community is represented on world's biggest 3D stage. Following video highlights some of 3D towns and cities already in Google Earth:

More info: Google Model Your Town Competition