Google Building Maker
From Seo Wiki - Search Engine Optimization and Programming Languages
Google Building Maker is a web application that allows users to build three-dimensional buildings for inclusion in Google Earth. Buildings are created using simple three-dimensional shapes combined with aerial photos. Google reviews new building submissions and includes them in Google Earth's three-dimensional buildings layer when they are of sufficient quality and a better model doesn't already exist. Building models can be exported for editing in SketchUp.