gistfile1.js

var express   = require('express')
  , app       = express()
  , server    = require('http').createServer(app)
  , io        = require('socket.io').listen(server);
 
/**
 * Http Server.
 */
app.use(express.static(__dirname + '/public'));
app.use(app.router);
app.get('/', function(req, res) {
  res.sendfile(__dirname + '/index.html');
});
server.listen(8080);
 
/**
 * Socket.io stuff.
 */
io.sockets.on('connection', function(socket) {
  // ...
  emitter.on('stats', function(stream) {
    socket.broadcast.emit('stats', stream);
  });
});
io.set('log level', 1);

gistfile2.html

<script src="/socket.io/socket.io.js"></script>