Invision - Prototyping and collaboration for design teams
Materia - Materia is a development environment to build advanced mobile and web applications.
Dotarchy - Pick a topic, discuss it, make some Friends
Zukitwo - Zukitwo is a Gnome Shell and GTK theme that currently works on Gnome Shell 3.14 and the latest version of GTK.
Start on Android by Google - Developer program to optimize your app before you launch
Papirus - Papirus icon theme for Linux. Contribute to PapirusDevelopmentTeam/papirus-icon-theme development by creating an account on GitHub.