What are the programming languages for stalking facebook friends : <p>I would like your guidance. Could you suggest me a programming languages capable of monitoring my Facebook friends activity? 
By activity I mean:</p>

<ul>
<li>Know when they get online</li>
<li>Know when they post something</li>
<li>Know which are my friends that contribute more in likes/comments in my profile in the last <em>X</em> hour </li>
</ul>
