LumoTray - A multi-monitor wallpaper and fullscreen manager and menu builder
FCorp My Desktop - "ALL-IN-ONE" Desktop Related Tools.
Ultramon - UltraMon is a piece of software built to help with the management of multiple screens on the same computer system. Without software like this, taking full advantage of an expanded desktop space can be difficult.
Wallpaper Cycler - NuonSoft WallpaperCycler is a powerfull utility to manage all your wallpapers and to automatically cycle between your wallpapers.
Superpaper - A cross-platform multi monitor wallpaper manager.
WallpapersEveryday - Gorgeous wallpapers on your desktop in just one click or auto-delivered at chosen time intervals.