Adam has contributed the following list of ideas for discussion in 2011. Feel free to reply to this post endorsing any of these or adding your own:
Metaphysics in general: What is truth? How can we ever be certain that something is true? Is truth the same as consensus?
Existentialism: What is the purpose of our existence?
Plato's Cave: Appearance vs Reality Morality of Euthenasia, the Death Penalty, Abortion
Knowledge: Does knowledge bring us any closer to a correct understanding of reality?