screen pen

SnapShot is a simple program that captures a part of the screen and keeps it.

A freeware utility useful to magnify any area on the screen/desktop.

This OS X screen saver draws patterns of raindrops on your desktop.

System Tray Utility to Change Screen Resolution

ScribbleScreen is a presentation tool allowing you to write directly on screen.

Point N See is a utility to enlarge dynamically a portion of the screen.

Cubic Ruler is a very simple to use screen ruler.

This free program allows you to change the screen brightness by pressing hot key

DKOSD shows an "On Screen Display" the status of the Caps Lock on the keyboard

DKOSD shows an 'On Screen Display' about the status of the Caps