I've been using the club system to develop councils for my BACC game. I've got the Town Council set up as a club with the Mayor as the leader, so I can call council meetings whenever I like.
I've also set up Arti Aestimationis for aspiring artists. The leader's got level 10 in the painting skill, so once she has more members, she'll be tutoring them in painting, probably at an arts centre. I've also got plans for an eventual wine club, In Vino Veritas (my founders are English upper class snobs, hence the approximate use of Latin here and there :D ).