An implementation of Conway's Game of Life (http://en.wikipedia.org/wiki/Conway's_Game_of_Life).
It is written in node.js with the Expressjs framework and uses HTML5 canvas to draw the board.
Server Requirements - node.js modules 'express' and 'jade'.
Browser Requirements - a modern browser, tested on Chrome 13.
Browse to http://blooming-mist-4344.herokuapp.com/ to see it running.