Documentation

Official API docs detail the Node API.

NodeSchool.io will teach you Node.js concepts via interactive command-line games.

Stack Overflow node.js tag collects new information every day.

docs.nodejitsu.com answers many of the common problems people come across.

How To Node has a growing number of useful tutorials.

GitHub

All development takes place at github.com/joyent/node. This is where discussion regarding core development occurs.

If you are interested in contributing to Node.js, please first read the contribution guide.

Discussion

The mailing list is used for announcements and discussion about Node.

The github issues list is the place for discussion of Node.js core features

Many Node users are active on Twitter as well.

Periodicals

Node.js Weekly is an email list that gathers up the latest events and news from around the Node.js community.

Planet Node is an aggregator of Node developer blogs.

NodeUp is a podcast covering the latest Node news in the community.

NodeJS Reactions captures the Node.js experience in the form of animated GIFs.

Real Life Events

Node Meatspace is a webpage listing upcoming meetups and events in different places.

NodeConf conferences are the main event in the United States; they are organized by Mikeal Rogers.

NodeConf EU is a Node conference in Europe, organized by Cian O'Maiden.

NodeFest (東京Node学園祭) is organized by the Node.js Japan user group.

NodeCamp.de in Cologne, Germany is organized by Rails Love.

An Italian Node.js Conference exists as well.

Node Summit is a conference in San Francisco focusing on the adoption of Node in larger companies.

JSConf organizes the main JavaScript conferences.

Localized Sites

nodejs.org does not maintain any translations into other languages. However there are community websites in various languages with mailing lists and translations of the website.

nodejs.ru Russian blog.
nodejs.ir Iran group in Persian
nodejs.jp Japan user group
CNodeJS.org Chinese community
nodejs.co.il Israeli wiki
HKNoJ Hong Kong community
nodejs.tw Taiwan community
Node Hispano Spanish language community
Node.js Español Node.js in Spanish
OctoberSkyJs Korea Node.js community
FR . Node.js Google+ Community of Node.js French users
Node.js Türkiye Node.js in Turkish
NodeBR.com Brazilian community of Node.js
nodejs.org.au Australian Node.js blog & developers listing
nodejs.geek.nz Node.js site for Kiwis
nodejs.rs Serbian Node.js community website

IRC

For real-time chat about Node development go to irc.freenode.net in the #node.js channel with an IRC client or connect in your web browser to the channel using freenode's WebChat.