Administrators may not like this idea for various reasons, but just an idea... What if every user had some space set aside, like the PM's are, for thread id's to those favorite threads or useful threads that may be handy to revisit someday? Every thread has an ID, would it be useful for users to keep a list of those id's with the thread title within the forum interface? I suppose you could do the same with a simple text document with all of the id's on your own computer and accomplish the same thing. I just think it would be handier in the forum gui.