Google Earth http://earth.google.com/ allows a user to input an address anywhere in the world and then "zoom in" to get a closer view and a real photograph of an accident scene. It can also be used, like Mapquest, to get directions.
This service is free, so the cost of obtaining an aerial photograph, even for a small case, is no longer an issue.
We'll be using those here at my firm in our next arbitration... Who, after all, would question the admissibility of anything Google?