This article aims at introducing the idea of crowdsourcing and describing how businesses can use it in marketing and for building and maintaining strong positive relationships with their potential and current customers. It presents several case studies of its successful implementation by companies both in Poland and worldwide. Furthermore, the article describes possible benefits and pitfalls that businesses, which decide to introduce crowdsourcing, can face as well as motivations of people who decide to spend their free time and effort to engage in this kind of activities
