John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
FCorp My Desktop - "ALL-IN-ONE" Desktop Related Tools.
Wallperizer - Wallperizer is a desktop wallpaper changer.
CommandLine Wallpaper Changer - Change Wallpaper From little Command Line Application
Walyk Wallpaper Changer - Walyk Wallpaper Changer allow you to change your wallpapers automatically or manually.
MuralPix Wallpaper Changer - MuralPix Wallpaper Changer and Screen Saver