As of this morning, it looks like Erik is the administrator of the 2 Wikipedia message boards.
Anyone can sign up, with read/write access to both Mediation and Arbitration. I suppose it will take us around a week to figure out if either team wants to configure this differently.
The message board software has "usergroups", which could be used to separate Mediators from Arbitrators, if closed door sessions are needed.
I'm leaning toward an open forum with what I call "eavesdropping", e.g., only Mediators will contribute comments to the Mediation message board, but registered users can read every comment.
Another alternative is to limit read AND write access for each board to its members. We should discuss this before doing it.
Ed Poor, aka Uncle Ed Mediation Committee