Creating new knowledge is a core process in knowledge management and in social networks. The dynamic nature of social technologies and the social nature of knowledge attracts research into knowledge flow in social networks. Social technologies provides present a less costly but yet collaborative and diverse platforms for social networking, creating new knowledge and leveraging individual knowledge. However, prior research focuses on knowledge sharing rather than joint creation of knowledge in social networks. Building a knowing firm extends beyond knowledge sharing. Therefore, this paper explores and presents suggestions into joint creation of knowledge “knowledge co-creation”. The paper demonstrates how the theoretical ideas in the co-creation paradigm can be useful in exploring knowledge co-creation. The discussion introduces the relevance and scope of knowledge co-creation owing to the growth of online social networks. We derive a typology of knowledge co-creation that suggests pathways and conjectural propositions into exploring co-creation of knowledge in social networks.