Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use. It can automatically download wallpapers from various online sources, allows rotating them on a regular interval or on demand, and provides easy to use ways to separate the great images from the junk.
Notable other features include: showing a nice digital clock on the desktop, applying of various nice image filters to the wallpapers, great visualization of the history and the image folders which allows the user to very easily change the wallpaper manually, on-demand publishing of images to Facebook. More Info »
Variety runs on Ubuntu 12.04 and newer, and on most Ubuntu variants and derivatives - Xubuntu, Lubuntu, Kubuntu, Linux Mint, and others.