The circle, as they say, is complete. JavaScript underwent a significant shift in thinking recently, from a "browser-only" language to a language that’s increasingly seen as a server-side execution system. In some cases, a JavaScript engine is embedded inside a larger server program, such as what we see with different NoSQL databases (MongoDB, CouchDB), but now, with the increasing popularity of NodeJS, as a server itself. In this presentation, we’re going to take a hard look at NodeJS, from installing it through using it write a variety of different server programs. No longer is JavaScript just a user-interface tool.