The other day I ran a workshop for PR and communications staff who are working in housing associations, and I've put the presentation and game that I used on the social media wiki.
The cards are much the same as those used in other games, but after groups had invented the scenario (a housing organisation wanting to improve communications) I asked them to think about two dimensions. First, who was the main focus for improved communications (Board, staff, residents, others) and then what benefits were they looking for: improved consuming of information, better communication, and/or collaboration. After that the groups considered what communication methods would be most appropriate.
Overall the game sequence was:
... although we didn't get time for the storytelling.
I think that it should be possible to develop this game for The Membership Project, where as I reported earlier we need some ways to help organiaations explore the implication of social media, and how to use it. Meanwhile you can download everything from the wiki.