This Book is available free online at: http://nelsonic.gitbooks.io/node-js-by-example/ in MOBI (Kindle), PDF (everything) and ePUB (iBooks).
Node.js is not "point-and-click" like WordPress, SquareSpace or Salesforce.com; you will need to write some "code". But as I will demonstrate, that's a lot easier than it sounds (if you're new to writing code), gives you more power/flexibility and puts you in full control.
Yes! Some of the biggest organisations/companies in the world are using Node.js in Production systems.
Box.com, British Sky Broadcasting (Sky/Now TV),
Wikimedia (in progress of moving to SOA with node!)
The node.js ("core") has many useful modules.
Bookmark: http://nodejs.org/api (you will come back to it)
Which node.js core package(s) can/should I use?
Every core module has a "Stability Index" rating on the node.js API.
General rule: If you are being paid to write code
that runs in node.js,
pick core modules/methods with stability Stable, API Frozen and Locked.
Core Modules to Learn
Community Modules to Learn: