title: Asynchronous OR Synchronous Loading is better?
body: <p>Found on JavaScript SDK
  <a href="http://developers.facebook.com/docs/reference/javascript/" rel="nofollow">http://developers.facebook.com/docs/reference/javascript/</a></p>
  
  <pre><code>    "...
      Asynchronous Loading
      --------------------------------
      This code loads the SDK asynchronously so it does not block loading other
   elements of your page. This is particularly important to **ensure fast page 
  loads for users and SEO robots**.
  
      Synchronous Loading
      --------------------------------
      It is possible to load the SDK synchronously which may be useful for 
  debugging, but this method is not recommended for typical use. Synchronous
  operations will block the web page, resulting in worse performance and a 
  slower user experience. This **may also negatively impact SEO due to the 
  increased slowness perceived by robots and crawler**s. ..."
  </code></pre>
  
  <p>So, which one of these statements is correct?</p>