Wikis Wikis All Around

I had previously taken the Wiki Fundamentals class offered by Campus ITS, and found it to be very helpful in understanding the role of Wikis on campus.  It seems to be a great supplementary tool for classroom instruction.  In the Library, I can see that wikis can have a role to play in committee work.  Again, though, all members of a group have to be comfortable in using the wiki in order to have it work successfully.  Good for sharing information, but maybe not so good for creating shared documents?