There are two threads on the first page:
Obviously, because it's in progress, you can't post in this thread, but you can certainly read:
http://www.mmo-champion.com/threads/...House-Dan-thal
This thread is for in between games, and occasionally just random chatter, remember to NOT post anything of relevance to the current game in here until after the game is over:
http://www.mmo-champion.com/threads/...cussion-thread
In general, whenever a game ends, person in line to mod the next game will post a signup thread in "Fun Stuff" and will link it in the "Mafia Discussion Thread".