I'm not very familiar with what a wiki is. But what I do need is a way to let the general unregistered public or just registered users of my wordpress site create/edit pages right from the page itself. Not the weblog though, just the pages. I would also like a way to discuss that page. Similar to how people can comment on a weblog entry.
I've tried mediawiki and it's far to confusing. My visitors would never take the time to learn to use it.
So every page created needs to have a edit button and there needs to be a general button on the site that says "Create a new page". Simple but effective.
Does something like this already exist for wordpress or could it be done?