Ruby
- https://github.com/tylerpearson/civic_aide - gem to interact with Google Civic Info API
- https://github.com/CodeMontageHQ/codemontage - website to feature social good projects
- https://github.com/empirical-org/Empirical-Core
- https://github.com/activate/ActivateHub
- https://github.com/codeforamerica/ohana-api
HTML/Markdown
- https://github.com/WriteSpeakCode/website - Static Site generated via Middleman (Ruby tool)
- https://github.com/sursh/talks-i-want-to-give - List of talk ideas for my future self (thx Sasha)
Javascript
- http://p5js.org/contribute/ - A successor to Processing
- https://github.com/playcanvas/engine - 3D game engine
- https://github.com/photonstorm/phaser - JS game
- https://github.com/jquery/jquery-mobile - jQuery mobile