Commit Together by Github - Now add co-authors to your commits

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

Commit Print - Posters of your git history

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.

gitbird - So, I don't always remember to tweet what I do, but commit my code often, and what do users love more than your product?

Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.