DNode

substack's dnode at master - GitHub: "DNode lets you expose a JavaScript function so that it can be called from another machine using a simple JSON-based network protocol. That’s relatively straight-forward... but DNode is designed for asynchronous environments, and so also lets you pass callback functions which will be translated in to references and used to make remote method invocations back to your original client. And to top it off, there’s a browser client library so you can perform the same trick over a WebSocket between a browser and a server."

creationix's step

A simple control-flow library for node.JS that makes parallel execution, serial execution, and error handling painless.