John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.
FCorp My Desktop - "ALL-IN-ONE" Desktop Related Tools.
Wallperizer - Wallperizer is a desktop wallpaper changer.
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
Adolix Wallpaper Changer - Adolix Wallpaper Changer- free wallpaper changer software.