Features / Usability

I meant something simple like a monthly subscription. You'd create content with the wiki, and then sell subscriptions to that content.

CMSes with ecommerce support like Joomla have subscription features, but I think those lack true wiki functionality. That's why I asked for tried and tested wiki/ecommerce combinations.

...now that you mention per page sales: one could possibly also sell a monthly subscription to the entire site, and then share the pot among authors according to page views. But that could lead to an undesirable level of competition...