As scientists, we greatly benefit from discussing our work with our peers. Informal, unstructured interactions often yield highly creative feedback. With this in mind, we created a group that fosters discussion of its members' work. The group engages us in new research fields and ways of thinking, and provides us with an opportunity for co-mentoring. Three key components were essential for making this group work: the emphasis on non-hierarchical debate; the diversity of the group members; and the mutual respect existing among the participants.