Modern display screens do not suffer so much from this problem. Today, therefore, screen savers are mostly an adornment, a way to liven up the computer. Many screen savers provide another benefit, hiding a user's work from would-be snoopers. These screen savers fill the display with an image or animation until the user enters a password.

Screen saver development
This is Silkmoth On-Line, a site that provides information on professional screen saver development and animated GIF creation services and many free downloads.

Screen saver heaven
This site hosts a collection of over 500 downloadable screen savers for Windows platforms.

Yahoo!'s screen saver shareware page
Yahoo!'s directory of screen saver shareware.