Dashboard - open source
Mozaïk is a tool based on nodejs / react / reflux / d3 / stylus to easily craft beautiful dashboards.
SuperScript - A language for writing Chat Bots
Dialog system for bot in Node.js with sentiment analysis, pos tagger, etc.
Downgrade Node.js to a Specific Version Using Homebrew
How to downgrade NodeJS version on mac
pm2 - Processes launcher
Convert a script to a service.

Support a lot of interpreter: nodejs, python, etc.

with Clustering support
Hardening node.js for production
Part 1: Encapsulate node.js in a child process
> http://blog.argteam.com/coding/hardening-nodejs-production-process-supervisor/

Part 2: Use nginx to load balance (with upstream server)
> http://blog.argteam.com/coding/hardening-node-js-for-production-part-2-using-nginx-to-avoid-node-js-load/

Part 3: Manage keep-alive connection when restarting Express
> http://blog.argteam.com/coding/hardening-node-js-for-production-part-3-zero-downtime-deployments-with-nginx/

Best advice:
Use nodemon for development, pm2 for production (https://www.npmjs.com/package/pm2)
retire.js - Analyse Javascript code for vulnerabilites
Check vulnerabilities on javascript source. Node module & chrome plugin
Sitespeed.io - Analyze your website speed and performance
Node module to analyze website performance
inliner - node tools to inline images
Inline is including image inside html.
Ex: <img src="data:image/gif;base64,
Node-RED - BPM tools for IoT
Wire actions with sensors (hardware or software) with triggers

Could be connected with:
nodeschool.io - Tutoriaux nodes et JS
Avec un certain niveau :)
SailsJS - Framework MVC simplifié pour NodeJS
A tester
JohnnyFive - Interface Arduino - NodeJS
Pour utiliser simplement un Arduino avec NodeJS