title: Examples of OAuth with multiple authorization tokens?
body: <p>Is there an example of an OAuth implementation or profile which uses multiple authorization tokens in one interaction?  Can this be done with vanilla OAuth (as opposed to an extension)?  Is there any discussion on the reasons for or against using multiple tokens in one request?</p>
  
  <p>OAuth WRAP uses two tokens, but only one is an authorization token; the other is a request token which is used to obtain a new authorization token.  What is the reasoning behind this?  Does this bake sessioning into a single authorization token simply to make token passing more straightforward?  Does anyone recommend building OAuth authorization tokens in this way across multiple interactions?</p>