You may well be aware that, if you are talented in the area of 3D modelling, that it has been possible for some time now to create 3d photo realistic models of buildings and add them to Google Earth by way of Google Sketchup. But what if you don't have this kind of talent? Fear not. Google have now launched Building Maker. Using a very simple interface of blocks, you can map the buildings in your favourite city and submit them for review for them to eventually appear in Google Earth. The following video explains it best.