“…The challenge is rather on deciding which ones to use. Based on a review of research on online participation (Kubicek, Lippa, & Koop, ; Lippa et al, ; Pratchet et al, ), participation in environmental assessment (Dietz & Stern, ; Newig, Jager, & Challies, ), and public participation (Geissel, , ; Innes & Booher, ; Rowe & Frewer, ) we identify two often applied criteria for the evaluation of participation: quality and legitimacy . Following previous research (Beierle & Cayford, ; Chess & Purcell, ; Rowe & Frewer, ), these success criteria can be distinguished further by applying them to the result and to the process of online norm setting.…”