RocketDock - RocketDock is a Mac OS X dock clone.
Fences - Keep your desktop organized with Fences. This is a simple software program that allows you to sort the tabs on your desktop and create files that are easily recognizable to you.
ObjectDock - ObjectDock is the most popular animated dock for Windows.
iCollections - Organize your Mac desktop items.
Winstep Nexus - The Winstep Nexus Dock is a FREE* professional dock for Windows. With Nexus, your most frequently used applications are only a mouse click away - and Nexus turns working with your computer into a fun and exciting experience.
TAGO Fences - TAGO Fences is a simple, lightweight, and handy application that is specially designed to help users organize their desktop icons in several areas known as Fences.