Re: Notices/Stickied Threads
The nearest thing to this that I've seen is on the photo gallery site I use, Pbase.com. When you edit a directory's details, every item in it (both photos and other directories) has an arbitrary number listed next to it. By default, these start at 100 and increase by hundreds, but you can assign any number you want. When you've saved your changes, the viewer sees everything in ascending numerical order.
Imagine a "Game Display" GM option screen that displayed a list of all the threads, with a sort-number next to them. Like this:
[0100] Game Rules
[0200] Requesting to Join
[0300] Posting Style and Play Suggestions
[0400] Adventure Notes
xxx1 OOC chat thread
xxx2 Kill the rats in the cellar (The Journey Begins)
xxx3 OOC combat rolls
Now if you decided you wanted to add a map thread between Posting Style and Adventure Notes, you could just create it and assign it, say, [350] as its sort number, and it would show up where it was supposed to. Maybe one day, the admin decides to reorder all the threads. It would be as easy as just going to that index, and entering the priorities all at once.