Wiki "fun and learn" time

I had some fun with the Charlie Brown cartoon and have used Wikis before, adding to the ALSC wiki about the partnership committees that I am a Priority Consultant for.
I have not been a fan of Wikipedia because with my librarian background and daily experience I have always put accuracy and reliability of information first.
I can see Wiki use for discussions between staff instead of a meeting at a set date and time.
This would allow a freer exchange perhaps than emails to the group concerned.