title: How is the OrientDB used on famous web services?
body: <p>I saw the presentation <a href="http://code.google.com/p/orient/wiki/Presentations" rel="nofollow">http://code.google.com/p/orient/wiki/Presentations</a>.
  They're talking the product is used on Twitter, Facebook, Amazon, Google.. and etc. What isthe product used for?</p>