An internet provider? You could have your own version of JustResizeIt! with your logo and your colors, distributing it as a give away, making a great advertising and gaining new customers
 

A beer brewery? You could have JustResizeIt! in the shape of a beer bottle cap with your name and colors on many desktops
 

An online photo community? You could have extra functionality in JustResizeIt! to resize and send pictures to your web site galleries automatically