title: Facebook Application Tab -> External Linking with PHP
body: <p>I currently have an Application on the Facebook Tab, and am wondering if there is a way for me to deep link into an item on that app tab.  Example:</p>
  
  <p>User is in the application (which is searching books), finds a book they like, and wants to share it with a friend.  They click to share it, and I can pull all the info, however I don't have a deep link so when it's emailed, facebooked, ect.. it sends the user directly to the page with it on it.</p>
  
  <p>Is this possible on the Application Tab? I know on the canvas I could deep link fine... but looking for a way to do it on the App Tab.</p>
  
  <p>Thank you for your thought and responses.</p>