Yes, google satellite is very cool! We also have a lot of small planes flying over our properties all the time. They take photos then try to sell them to people, but I find it a bit disconcerting.
It took about two years for google maps to catch up to the fact that we had built a barn :) But I used their images to plan my pastures! Getting a bird's eye view is so useful for things like that. You can get some good measurements and plan how many posts you'll need, etc.!