Look at the bird's view below which provided by Windows Live Local.
When I first try this site, I think it is similar to the Google Map or Google Earth product. They all provide the maps and aerial images.
Today I found the Windows Live Local can give us much real image of the building in the street like above.
Compared with Google Maps, Google Maps have more coverage on the earth and more high-resolution photos. The Windows Live Local has some bird view images in some location like San Francisco, Seattle, etc.
It looks so good. I will use Google Earth and Windows Live Local same time. If the location covered by bired's eye, I will use it. If not, I will use Google Earth which will give me more details.
Thanks to them. They are all free now. Keep free.
Stumble It!
Check out http://www.birdseyetourist.com/