Mark Bernstein contemplates WiKi nature. Part of his discomfort comes from trying to have this nature be tightly consistent across Wiki Types. Besides, my first encounter with WikiSym was a keynote about NobitIc wikis. I don't do Open software. One of the key themes of Neo Victorian Computing is distrust of Collaborat Ion; "participatory" sounds nice but great software comes from the PassIon and insight of one or two creators, not from alliances and committees.... I propose that a fourth distinctive feature of wikis is that they are nominative: to link to something, you have only to name it. And, if you name something, you link to it (Link As You Think).