How to realise an efficient marketing campaign for a brand, and at the same time be socially involved? What is the impact of social, purpose driven marketing on a brand? How to realise a behaviour change within a community? A new way of building strong brands, based on the story of Trooper. Trooper is a new cybermediair building bridges between associations and brands. Trooper is a loyalty & shopping portal on the one hand used to collect money for your good cause or association (sportsclub, youthclub, schools…) by online shopping and on the other hand used by brands to build strong bond with consumers by giving support to the association of their choice. Trooper enables brands to integrate CSR in efficient marketing.