use screen

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

Saves entire screen or active window to 5 file formats (JPEG,TIFF,PNG,GIF,BMP)

Mouse Click software utility to click mouse automatically on computer screen

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

System Tray Utility to Change Screen Resolution

Elegant and handy screen capturing software with quick and easy post-processing.

Screenflick features high performance screen capturing for smooth.

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

Run hidden to move mouse cursor to random positions on the screen.

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