Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
DesktopSlides - DesktopSlides is a light and user friendly desktop wallpaper changer for windows.
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
FCorp My Desktop - "ALL-IN-ONE" Desktop Related Tools.
Wallpaper Cycler - NuonSoft WallpaperCycler is a powerfull utility to manage all your wallpapers and to automatically cycle between your wallpapers.