I attended a knowledge cafe. My first ever, and it was hosted by David Gurteen himself. So I got the real experience 😉
Look at this presentation on how to run a knowledge cafe
Knowledge Cafe Workshop May 2008 01http://static.slideshare.net/swf/ssplayer2.swf?doc=knowledgecafeworkshopmay200801-1210838359573689-8&stripped_title=knowledge-cafe-workshop-may-2008-01
A knowledge cafe is all about knowledge exchange through conversation. There is no formal feedback or wrap up in a knowledge cafe, but David invited us to blog about our experience. Bruno already did. He points out the importance of the group composition in the quality of the conversations. I think a homogenuous group leads to new insights and knowledge creation. In a heterogenuous group there will be more knowledge transfert (teaching and learning)
So both settings have value, in the right context