Node

win7

https://github.com/joyent/node/wiki/Installation

64bit version: http://nodejs.org/dist/latest/x64/node.exe

• is in /wamp/bin/node
• installed npm there too
• added it to path
• to test: from git bash> node hellonode.js starts server, see page at http://127.0.0.1:8124/

homebuntu

http://ariejan.net/2011/10/24/installing-node-js-and-npm-on-ubuntu-debian/