Display your RokGallery galleries as an slideshow in the background of your site.
I once created this plugin for someone … they needed to set backgrounds on a…
Add fullscreen slideshow backgrounds to any post or page using MaxImage 2.0.
Change the background image of the BODY-Tag. A pool of images from Media Library and…
See today's Wikimedia Commons picture of the day behind WordPress login screen.
Change your wordpress's background to the image which provided by bing.
A Flexible and powerful Video/Image Background handler
Beautiful Background Animation For Your Website
The plugin that allows to add YouTube video backgrounds.