Cal renunciar a certa privacitat per obtenir alguns serveis <a href="http://newtechpost.com/2012/01/26/the-upside-and-downside-of-privacy-on-the-web">http://newtechpost.com/2012/01/26/the-upside-and-downside-of-privacy-on-the-web</a><br>
<br>Raf<br>