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.
Postmodern.app - Anonymous, short, ephemeral conversations with others
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.
Roomvine - Chatrooms for real life venues, neighborhoods and events
Basecamp - A simple and elegant project management system.
Berkanan - Chat with people nearby. Even offline, on an ✈️.