Dedicated Node.js websites and ebooks (with tutorials, explanations, …)
Nodetuts
HowToNode
Nodejitsu's blog
Mastering Node
The node beginner book
Some interresting tutorials and articles
O'reilly's Up and Running with Node.js
Nettuts screencast to get you started
Daily JS Let's make a web app
Realtime HTML5 Canvas Drawing with WebSockets, Node.JS & Socket.io
Daily JS post on hosting Node apps
Essential Node.js patterns and snippets
Asynchronous Code Design with Node.js
Layers – Layered Architecture for node.js made easy
Podcasts
NodeUp
Frameworks
Express, probably the most used Node.js framework
Express boilerplate
Geddy, modular full featured framework
Connect, middleware framework
Socketstream : A framework built around the Single-page Application paradigm
Hook.io: Full featured IO framework
Usefull modules
Run you programs continuously and monitor it
Node supervisor runs your programs and watch for code changes
Nodemon monitors you files changes
Logio monitors your apps logs
Tasks automatization
Buildr.npm : The (Java|Coffee)Script and (CSS|Less) (Builder|Bundler|Packer|Minifier|Merger|Checker)
Jake : JavaScript build for Node.JS
Database handling
Cradle : Powerfull CouchDB client
Mongoose : MongoDB object modeling tool
Node-sqlite : NodeAsync SQLite3 bindings for node
PersistenceJS : Database mapper library
Form requests handling
Formaline : Form request handling
HTML/XML
Jade template engine
JSDOM: CommonJS implementation of the dom
XML2JS : XML to Javascript object converter
CSS
Stylus : Clean and extensive css
Less4Clients : Renders LESS files serverside
Working with files, images, …
Findit : easily walk directory tree
PDFkit : PDF generator
Node GD binding
ImageMagick
Optimisation
UglifyJS : 1JavaScript parser / mangler / compressor / beautifier library
Command line
Easy Node.js command line interfaces with Commander.js
Data visualization
Cube: Time series visuelisation
Websockets
Socket.io: Cross browser web sochets
NowJS, creates a namespace Now accessible from bote server and client side
Various
Browserling opensourced 90 modules
And the bonus, a little help sheet
Gosquared's helpsheet