Abstract This research is based on the concept of Conversational Capital proposed by Bertrand Cesvet (2009), viewing "conversation" as a form of capital in accordance with the definition from the economic perspective. This research takes two non-profit organizations, TED and PechaKucha Night (PKN), as case studies, and tends to explore how Conversational Capital is operated in these organizations. As creative platforms, TED and PNK both held various, yet different, activities to achieve their goals. These activities can be systematically framed under the criteria of the eight engines from the Conversational Capital, sculpturing a suitable environment for participants to co-create, interact and communicate, enhancing the motivates for people to spread positive word-of-mouth effects to support these creative platforms. Besides matching the activities of TED and PNK with the eight engines, this research also explores the relationship between the eight engines, analyzing the effects and influences triggered by one active engine to another. For research findings, first, TED andPNK both undertake methods of co-creation to accumulate Conversational Capital; second, TED uses Creative Commons licensing as a catalyst to spread its content in the virtual world, accelerating the diffusion of its brand; third, TED and PNK both continue to invest in Conversational Capital, forming a positive cycle which brings value to these two creative platforms. This research is constructed in seven sections. First is introduction, describing the phenomena and influence of the "conversation wave" throughout the world; second is the literature review of Conversational Capital; third, the research framework; fourth, the description of TED and PKN cases; fifth, the discussion and analysis of the cases; sixth, the researching findings; seventh, the conclusions and recommendations.