The Right Side Slideshow tool allows you to upload multiple photos / graphics and display them in an automated slide show.  It is similar to the Main Body Slideshow tool in that you can define the order of the pictures or have them appear randomly and you can dictate the speed of the slideshow.  The primary difference in the where the pictures appear (in the right side bar) and the size of the pictures (smaller).

Look to the right to see some examples on how this tool can be used.