ØMQ (also spelled ZeroMQ, 0MQ or ZMQ) is a high-performance asynchronous messaging library aimed at use in scalable distributed or concurrent applications. It provides a message queue, but unlike message-oriented middleware, a ØMQ system can run without a dedicated message broker. The library is designed to have a familiar socket-style API. ØMQ is developed by iMatix Corporation together with a large community of contributors. There are third-party bindings for most popular programming languages, from Java and Python to Erlang and Haskell.
‒ Courtesy of Wikipedia
There are currently 2 groups being archived for ZeroMQ.