Abstract
Involving users in the design of sharing economy services is important to re-alize the expected growth in this market. However, such involvement may be challenging due to the complexity and networked character of the service context. We present a case study showing how users' online feedback on novel design concepts may represent a viable approach to user involvement. In particular, the feedback provides insight into the strengths and weakness-es of proposed concepts as well as suggestions of relevance to the subsequent design process. On the basis of the case study, lessons learnt are discussed, as is needed future research.