PingPoint - Never miss a Mark Zuckerberg signup to your app ever again
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!!
ReIcon - ReIcon is portable freeware that enables you to save and restore your desktop layout.
DesktopSlides - DesktopSlides is a light and user friendly desktop wallpaper changer for windows.
AeroWallpaperChanger - AeroWallpaperChanger is another "wallpaper changer" software for Windows 7.
Random BackGround - Random BackGround desktop wallpaper slideshow with advanced features for Windows