I just read an excellent article posted on XKCD on how to create a better IRC chat.

Basically, to keep chats interesting, the server boots out users who enter things already entered before.
Wouldn't that be good for corporate meetings? The rule could be amended: If someone says anything said before (even using different words), the person cannot speak again for the duration of the meeting.
Imagine how much shorter meetings would be with this rule. No more endless repetitions. No more wasted time.
Another nice side effect is that meeting attendees might pay more attention to what is said - because they are enforcing the rule!
Interested in you thoughts,
Jonathan Starr