I'd be very interested to hear others views on the CPS or closures style. Myself, I think it's flawed for the reasons given in my other post but I may be missing something and if so would like to know what. Else it seems an elegant but impractical solution for the real world; you're trying to store all possible future contexts for all your clients without knowing when a client has gone away making to safe to reclaim resources. Far better to have each client store some of that in the URLs that make up the returned HTML.
On the REST side, O'Reilly have a book out recently for those that want to understand more. http://www.oreilly.com/catalog/9780596529260/