Gheorghita Ghinea Bendik Bygstad Christoph Schmitz Multi-dimensional Moderation in Online Communities: Experiences with Three Norwegian Sites. 191-196 2009 HCI (12) http://dx.doi.org/10.1007/978-3-642-02774-1_21 conf/hci/2009-12 db/conf/hci/hci2009-12.html#GhineaBS09