Gitstalk - Discover what your favorite GitHub users are up to

Nifty - Manage projects, work, and communications in one place.

Refined GitHub - Browser extension that makes GitHub cleaner & more powerful

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

CodeMyUI - Handpicked code snippets you can use in your web projects

Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.