Learn You The Node.js For Much Win! An intro to Node.js via a set of self-guided workshops.
(WIP) These are my solutions for the learnyounode's exercises.
Please bare in mind that I'm just learning this stuff and I am in no way an expert in JS or Node.js. These probably aren't the best solutions for these problems.
For more info in learnyounode:
Learnyounode's github repo.