“Crossroads I/O …
… is lego bricks for building scalable and high performance distributed applications.
… is what BSD sockets might have looked like if designed for today’s requirements.
… is message based, and supports many different network protocols.
… works with all programming languages, all operating systems.
… is part of a wider effort to make messaging a standard part of the networking stack.
… is Free Software licensed under the LGPL license.
… is a fork of the ZeroMQ project.”