we had in mind the metaphor of a mobile app developer who would set up a group on Facebook and act as moderator; this in order to gather requirements for a new app he is planning to realize or to elicit requirements for the evolution of an existing app. The developer could then, for example, invite exist- ing end users of his app(s) for a discussion. Based on this metaphor we decided to perform evaluation stud- ies within RE lectures in Switzerland and Austria, where students basically have some, but limited, RE knowledge. Those students acted as moderators and invited poten- tial end users (other students and friends) to requirements discussions on Facebook. In Study I and Study II the eval- uation was presented as an exercise to train the students’ moderation skills and to also highlight the dynamics of distributed RE for those students who were participating as end users. In Study III the evaluation was conducted to gather requirements for real-world projects the students were involved in.