Hive - Seamless project management and collaboration for your team.
Commit Together by Github - Now add co-authors to your commits
Sup! Standup Bot - The complete stand-up and follow-up bot
Commit Print - Posters of your git history
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.
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?