A Wiki Clone Ward helped us set up.
Us -- Ralph Hodgson and Martine Devos and Doug Mc David
We use the System Envisioning Wiki to prepare our Oopsla-workshop (third edition) on System Envisioning. There are some places left :-) so be sure to visit c2.com:8040 
and join us in Vancouver for a highly interactive experience.
Busy on Sunday morning? No problem: you can still help us work on a method for requirements engineering and surfacing "hidden" assumptions. In the afternoon we invite people interested in patterns, or with a strong opinion on patterns to share it in a Concept Cafe on objects and patterns.
Do you want to participate in this experiment -- fun guaranteed !!! -- please contact me as soon possible at mailto:mdevos@argo.be
The wiki clone does not respond anymore (quite long ago, I assume). Is there a way to get the materials of the wiki/workshop? --Om Candea
See original on c2.com