John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
FCorp My Desktop - "ALL-IN-ONE" Desktop Related Tools.
Komorebi - Komorebi is a wallpaper manager in Linux that uses the GTK+ and Vala libraries to support animated...
Wallperizer - Wallperizer is a desktop wallpaper changer.
Wallpaper Cycler - NuonSoft WallpaperCycler is a powerfull utility to manage all your wallpapers and to automatically cycle between your wallpapers.