June was a busy month in the citizen science calendar. One of the OPENER team embraced this opportunity for learning, sharing and discussing participatory science approaches by darting between 6 meetings, events and conferences in the Swiss City of Geneva. Since then, Muki has been reflecting on the relevance of this diverse set of gatherings and has written an account sharing his thoughts about the multifarious forms that Communities of Practice can take in the citizen science arena. Read all about how they vary in size, level of formality, topic and the opportunities for involvement on his personal blog Po Ve Sham.