How do people use the Game Wiki in their games?
I have it categorized into things like background, house rules, unique items, important NPCs, and summaries of adventures, and then it acts like a reminder and quick reference guide.
When I add new stuff, I tell the players in a thread and lead them there.
I think it is extremely useful and saves me from having a bunch of locked threads that I can't organize internally, and I don't have to go elsewhere to set up a homepage for these game materials.