Robinhood - Free stock trading service.
DigitalChalk - Online Training Software and Learning Management System (LMS)
DataSpark - Get access to exclusive hedge-funds stock research, for free
Workplace by Facebook - Connect everyone in your company and turn ideas into action.
SparkFin - Learn the markets for free, profit forever.
Onehub - Onehub helps businesses securely share and control files in the cloud.