Having just posted a similar topic,can I say that I am interested
Having participated in a PBEM (play by email) Cthulhu game I can tell you that it is not at all easy ,either as a player or,especially as games master,or keeper.
I dropped out of the game I was in because of what I considered rude and disrespectfull behaviour by another player,which makes me think that ,at least from what I have found so far,in that respect it might be an idea to run the whole thing on this site,where ladylike and gentlemanly behaviour and attitudes seem to be the order of the day
I have briefly looked through some of the group storytelling on this site and I think ,with a set of rules to help people along,it could be great fun
very interested to hear your thoughts
Barrington