Meteor - Meteor is a set of new technologies for building top-quality web apps in a fraction of the time.
Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Horizon - Horizon is a realtime, open-source backend for JavaScript apps.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
WoofJS - Easy-to-learn JS graphic framework
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.