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.
Interactive Calendar - Free multifunctional desktop calendar and convenient day planner
AutoWallpaper - Using AutoWallpaper:
FCorp My Desktop - "ALL-IN-ONE" Desktop Related Tools.