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@@ -155,6 +155,7 @@ Inspired by the [awesome](https://github.com/sindresorhus/awesome) list thing.
 ### Real-time
 
 - [Socket.io](http://socket.io) - Enables real-time bidirectional event-based communication.
+- [SocketCluster](https://github.com/topcloud/socketcluster) - Scalable HTTP + WebSocket engine which can run on multiple CPU cores.
 - [Primus](https://github.com/primus/primus) - An abstraction layer for real-time frameworks to prevent module lock-in.