An early modification of Zwiki for zope.org, no longer in use there. The big difference that is not enabled in current Zwiki is page regulations - page ownership is tracked and there is a UI allowing page owners to set fine-grained per-page permissions.

http://dev.zope.org/Wikis/DevSite/Projects/WikiForNow/FrontPage

http://www.ida.liu.se/zope/groups/cugs/FrontPage is still running it.