WebSocket-Node - A WebSocket Implementation for Node.JS ( Draft -08 through the final RFC 6455 )
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.
Lightstreamer - Lightstreamer is a server for delivering real-time messages to browser-based and mobile...
join.me - Instant screen sharing. Instant Aha!
Socket.io - Realtime application framework (Node.JS server)
TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.