search_v2.0.js

// file: search_v2.js
request = require('superagent')

searches = ['1. Node.js', '2. Express', '3. Underscore', '4. Async', '5. CoffeeScript']

search = function(keywords, callback) {
  query = keywords.split(' ').join('+')
  url = 'http://www.google.com/search?q='+query
  request.get(url, function(res){
    console.log('Received results for: ', keywords)
    callback()
  });
}

var i = 0;
search(searches[i++], function() {
  search(searches[i++], function(){
    search(searches[i++], function() {
      search(searches[i++], function() {
        search(searches[i++], function() {
          console.log('done searching')
        })
      })
    })
  })
})