VoodooPad

"VoodooPad is a place to write down your notes and thoughts. Plant ideas, images, lists and anything else you need to keep track of and VoodooPad will grow with you, without getting in the way. You can even drag and drop folders, images, applications, or URLs into VoodooPad — they’re linked up just like on the web. And with powerful search, nothing will be lost or out of reach.

Do you ever have a bit of information that you’re not sure where to file? Put it in VoodooPad, it won’t mind. Because the more you put into it, the more useful VoodooPad becomes."

Wiki like behavior