FCorp My Desktop - "ALL-IN-ONE" Desktop Related Tools.
Becrux Wally - Wally is a Qt4 wallpaper changer, using multiple sources like files, folders, FTP remote folders, Flickr, Panoramio, Ipernity, Photobucket, Buzznet, Picasa, Smugmug, Google, Vladstudio and deviantART images. Now it's available in many languages!!
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
Artpip - Artistic wallpaper for your desktop, refreshed daily.
Wallperizer - Wallperizer is a desktop wallpaper changer.
AutoWallpaper - Using AutoWallpaper: