Google have released new aerial imagery on Google Maps.
Google's aerial view is similar to Bing Map's bird's eye view, giving an oblique rather than an overhead view. The new imagery is available in Tuscon, Arizona, Norfolk, VA, San Antonio,TX and Albuquerque, NM.
This Aerial View Map now includes aerial imagery from a number of US locations and from Venice and South Africa.
Bird's Eye View
This second map places Bing Maps' Bird's Eye View side by side with Google Maps' aerial view. You can view the same locations as seen by Bing and Google Maps.
I have added an image from the Pima Air and Space Museum in Tuscon to the map.