“We need lots of variations on the theme of collaboration. Editing adds value, as does expertise.”

Exactly. That’s why I didn’t just throw up an install of MediaWiki for my travelguide wiki. Instead, I’m trying to create the technology so that it supports creating a travelguide for backpackers. A wiki won’t do it, I believe. It might, but I think there are better ways. Anyone can still edit anything, but things are more structured than a wiki, and the editing process is also evolving.