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.
DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
iCollections - Organize your Mac desktop items.
Mizage Divvy - Divvy is an entirely new way of managing your workspace.
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.
WindowGrid - Quickly and easily layout windows on a dynamic grid using just the mouse.