title: How to create Real Time AJAX?
body: <p>A good example of what I want is a chat system, where I send a message to someone and he can instantly see my message and vice versa.</p>
  
  <p>So I want the best way to track if in the database there is a new answer for me if yes then show it with AJAX. </p>
  
  <p><strong>Example Websites:</strong></p>
  
  <ol>
  <li><a href="http://www.twitter.com" rel="nofollow noreferrer">Twitter</a> </li>
  <li><a href="http://www.friendfeed.com" rel="nofollow noreferrer">Friend Feed</a></li>
  </ol>