Calendify - Calendify is an event community where you can share, publish, and subscribe to event calendars. It helps you to stay informed about what you are interested in and what is yet to come.

Signals Network - trader to data scientist

Down To Lunch - Press one button to get lunch with friends

SpeedBot - SpeedBot is a platform focusing on algorithmic trading for all.At SpeedBot, we see a future in which everything is systematic and also automated by bots and when it comes to systematic trading, there will be only one place to go: SpeedBot

Bitebot - Coordinate everyday lunches directly in Slack

AlgoRaven - AlgoRaven is a social hub for anyone interested in learning about algorithmic trading and creating competitive strategies (known as "recipes") that can be shared with friends.