Need to change your wallpaper? Social Wallpapering is a public effort to classify, rank, and distribute high-resolution images for use as desktop backgrounds; it is an attempt to create the greatest high-resolution wallpaper resource on the planet. Users can rate wallpapers, track their favourites, comment, and upload their own creations.
The design of Social Wallpapering was inspired by the potential of community-based interactive websites, especially digg.com.
Link - via Ursi's Blog