Transparent Screen Lock - Password protect your workstation or server with "Transparent Screen Lock" while monitoring programs that are running.
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.
ClearLock - A transparent screen locker.
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.
BlueLife KeyFreeze - FREE Windows application that blocks your keyboard and mouse without “locking” the screen.
iCollections - Organize your Mac desktop items.