AnnounceBot - Onboard new hires and wish them their birthdays, anniversaries, and special occasions
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.
Range - Coordination tools that teams actually love
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
DEED - On-demand app that makes volunteering easy, social and fun!
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.