InstantStorm - InstantStorm is a high-quality Flash screensaver creator that can quickly convert your Adobe Flash Files (SWF) into a full-fledged screensaver.
Save Hollywood - Play movies as your screen saver
Screensaver Factory - Screensaver Factory is a major screensaver solution that enables everyone to create realistic screensavers in no time at all.
Padbury Clock Screensaver - Minimal screensaver for Mac
Web-Page-Screensaver - Web-Page-Screensaver is an open-source tool that is designed to display a web page as your screensaver.
HotShots - Hotshots is a screenshot tool with some editing features.