‘SBE is an OSI layer 6 representation for encoding and decoding application messages in binary format for low-latency applications.’ Licensed under ASL2, C++ and Java supported.
‘like inetd, but for WebSockets’ — ‘a small command line tool that will wrap an existing command line interface program, and allow it to be accessed via a WebSocket. It provides a quick mechanism for allowing web-applications to interact with existing command line tools.’ Awesome idea. BSD-licensed. (Via Mike Loukides)