Recently I have been testing out the basic version of google earth. It's a free program that allows you to see satellite images of the earth. In some areas its pretty detailed while more rural areas are not. Some of the features I use it for are... -Measuring properties to find how many acres they are for an estimate. -I also add each house as a marked spot. -Driving directions from one marked spot to another. -If you are estimating a new job you can know how far from your furthest one it is. Here are some screen shots.