VISIONS
A small software tool that is useful to manage your photos in 3D. It is an innovative 3D image management system (3DIMS) which allows you to navigate through your photos in a 3D (three dimensional) world.
This way you can view your folders as a collection of boards spread on your screen, allowing you to easily perform cross folder actions such as moving photos from one folder.
Daily Wallpaper
Daily Wallpaper updates your wallpaper with a randomly selected pic on a daily or hourly basis. The program downloads quality wallpapers from DeviantART and National Geographic and offers several different categories to choose from. You can automatically update your wallpaper every X hours and/or each time your computer starts.
John's Background Switcher
This one is similar to the Daily wallpaper, and also termed as Automatic Background Switcher. You can select individual images to be used or rotate through images in a folder on your PC or downloaded from various images sites including Flickr, SmugMug, Picasa, Facebook, Yahoo! and others
Disclaimer:
All the sites listed above are from my knowledge only, and I have heard about some but won't them or I haven't even visited some of them. I am not reviewing or rating any of those, Just passing some information I know. These sites may not be permanent and may be changed or closed in future. I'm not responsible for any loss you can have using this websites, so use with caution, Thank you.