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I gave a talk on Friday at Full Frontal, a new one day JavaScript conference in my home town of Brighton. I ended up throwing away my intended topic (JSONP, APIs and cross-domain security) three days before the event in favour of a technology which first crossed my radar less than two weeks ago. That technology is Ryan Dahl’s Node. It’s the most exciting new project I’ve come across in quite a while. At first glance, Node looks like yet another take on the idea of server-side JavaScript, but it’s a lot more interesting than that. It builds on JavaScript’s excellent support for event-based programming and uses it to create something that truly plays to the strengths of the language. Node describes itself as “evented I/O for V8 javascript”. It’s a toolkit for writing extremely high performance non-blocking event driven network servers in JavaScript. Think similar to Twisted or EventMachine but for JavaScript instead of Python or Ruby.