install node.js & npm

 sudo apt-get install python-software-properties
 sudo add-apt-repository ppa:chris-lea/node.js
 sudo apt-get update
 sudo apt-get install nodejs npm

install on Ubuntu 12.10

sudo apt-get install python-software-properties python g++ make 
sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get update
sudo apt-get install nodejs

npm included in the nodejs from 0.10

install express

 npm install -g express

install mongoose (ODM for mongodb)

 npm install mongoose

install mongodb

 sudo apt-get install mongodb

start mongodb

install Jade (views templating engine)

 npm install jade

install Mongoose-auth (authentication plugin for mongoose)

 npm install mongoose-auth

install Everyauth (auth package (password, facebook, & more) for Connect and Express apps)

 npm install everyauth