One other possibility: It could be Google Street Views. That's tied in with Google Maps; on more heavily-travelled streets, you can move the little person icon over to the street and see what a house actually looks like. The photos are taken by contractors for Google who drive through neighborhoods in trucks.
There are actually a bunch of websites out there with funny shots taken for Street View. For instance, see http://www.streetviewfunny.com/streetviewfunny/index.php For more on Street View, see http://en.wikipedia.org/wiki/Google_Street_View