Alexander Johannesen has started a project to develop a topic maps-based Wiki, which looks to be very interesting. To quote:
[Thanks to Peter Van Dijck.] [Column Two]I’ve been planning a new project for some time, and this is the initial Release of Ideas. The project has been brewing for some time, but needs have arisen for me to actually get it up an running in a somewhat fast pace. I need a system for updating project areas with documentation, people involved, business cases, history and so forth (the usual suspects), more as a collaborative system more than specialised editors of content. Very much like a Wiki, but fixing the (for me) apparent flaws of current Wiki’s.