I think an ethics forum should be considered. I'm currently reading a moral philosphy book, and it's introducing several controversial points per chapter. I want to post several of them, but they'll probably end up in the "Coffee House" forum.
Topics include: infanticide, cultural relativism, homosexuality, abortion
Though these topics might not seem to have much to do with each other, the application of ethics is the underlying theme, so I thought it'd be a nice way to organize some of the threads.