http://www.desktopnexus.com/

http://en.wikipedia.org/wiki/Desktop_wallpaper

http://www.wallpapers-free.org/19/

http://www.wallpaps.com/

http://www.simplywallpapers.com/

http://www.bestwallpapers.org/computers/index.php

http://www.docstoc.com/docs/5549759/desktop-wallpapers-for-computers

http://wallpapers.pixxp.com/19.htm

http://www.desktopnexus.com/tag/computers/

http://fantasyartdesign.com/computer-desktop-wallpapers.htm