“PBwiki makes creating a wiki as easy as making a peanut butter sandwich”
PBwiki really is as quick and easy as they say. If you don't know what a wiki is, it's an application that creates a website on the fly, as you enter text in a natural way. Creating links between different pages is simpler than you'd believe.
I use PBwiki for a couple of purposes: one is a linked set of personal notes, and another is a shared list of cool things to do which I share with a friend.
Check 'em out -- the basic service is free!