Bing Desktop Background on Windows 7

Download:

http://windows.microsoft.com/en-US/windows/downloads/bings-best-2-theme

or


http://www.technobuzz.net/download-windows-7-bing-theme/

or,

Interesting link:

http://www.makeuseof.com/tag/how-to-set-a-bing-wallpaper-desktop-slideshow-in-windows-7/