A native MacOS Wiki:

"VoodooPad is a new kind of notepad. It's like having your own personal hypertext library, where you can jot down notes, web addresses, to-do lists... Anything on your mind. VoodooPad automatically links each page together, to form a miniature world wide web, on your desktop! Anybody familiar with the WikiWikiWeb will feel right at home with VoodooPad."