Special Purpose Wikis

I’m a fan of wikis for organizing and letting you search for game information. I’ve got the main Haunted Realm campaign wiki running on my website using MediaWiki, but that’s for public consumption; I still need a place for working on all my campaign notes that the players aren’t supposed to see.  I’ve mentioned TiddlyWiki before, a lovely little all-in-one-page portable wiki suitable for sticking on a thumb drive, but now Uncle Bear has two nice enhanced versions specifically for campaign notes and world design: TenFootWiki and WorldBuilding 101. Quite spiffy.