Saw one of the Goggle street view cars, the kind with the 360 degree cameras mounted on the roof, the other day and was curious how often they update. The area they were doing already had a street view. Googled street view and they claim they are updated every year. That's pretty impressive considering the amount of driving involved and the area covered. We're in a rural area surrounded by farm fields, but there is a street view on Google. I can't imagine that is updated once a year, but who knows? They have the money!