Fliqlo Screensaver - A screensaver that displays the time using a flip clock.
The GitHub Matrix Screensaver - Latest commits from GitHub visualized Matrix-style
Padbury Clock Screensaver - Minimal screensaver for Mac
Gource - Gource is a software version control visualization tool.
Really Slick Screensavers - Really Slick contains free 3D OpenGL screensavers.
Octohunt - Search to find developers in your city on Github.