title: How to add Twitter Expanded Tweets? (was: twitter media preview card for my site?)
body: <p>I googled a lot about how to make twitter media preview for my website entities if they are linked in a tweet like images below:</p>
  
  <p><img src="https://i.stack.imgur.com/VFwbq.png" alt="YouTube example"></p>
  
  <p><img src="https://i.stack.imgur.com/cEplI.png" alt="Kickstarter example"></p>
  
  <p>Any idea where can I find some documentation about it? Or a tutorial? Is this possible or these media/site previews are hardcoded in twitter?</p>
  
  <hr>
  
  <p><strong>EDIT:</strong> </p>
  
  <p>so, what I need: 
  If someone links my site on twitter, my widget appear under the tweet, like below:</p>
  
  <p><img src="https://i.stack.imgur.com/lhRcb.png" alt="Example example"></p>
  
  <hr>
  
  <p><strong>UPDATE 2012-06-13</strong></p>
  
  <p>It appears this is an <a href="http://blog.twitter.com/2012/06/experience-more-with-expanded-tweets.html" rel="nofollow noreferrer">Expanded Tweet</a> - -what the requirements are to integrate these expansions into Twitter are do not appear to be displayed - but this sure is interesting.</p>