Free Screen Savers - Download hundreds of the coolest desktop themes, screensavers, and wallpaper from movies, TV shows, and animals. Custom screen savers available also. 3D LI Screensavers - A software company developing and publishing advanced 3D screensavers for the latest graphics cards.
Categories are nature, mathematical, science, desktop, space, and astronomy.
All well organized in categories. AllScreenSavers - Site dedicated to helping Windows users find popular screen savers. Amazing Savers - Thousands of free screen savers available in over 10 categories. Best Screen Savers - Archive of shareware and freeware screen savers in various categories. Cool Screen Savers - Offers screen savers and wallpapers sorted by theme.