GitHub Visualizer - Enter user/repo and see the project visually
Sketch Palettes - Sketch plugin to save and load colors into the color picker
Octohunt - Search to find developers in your city on Github.
Swatches - A fun and accurate color picker for the real world
Gource - Gource is a software version control visualization tool.
Color Palette Generator - Enter the URL of an image and find its color palette