Web Served 8: Node.js, Redis, and real-time writing with Etherpad How to set up and host your own Google Wave-style collaboration app.

Node.js is the ideal middleware for complex API integrations, and it keeps getting better. With every iteration of Google’s V8 JavaScript engine, the performance of Node.js improves.

JavaScript can be a boon if used with care—or a bane if used recklessly. Here are the 10 JavaScript concepts you’ll need to write scalable code in Node.js.