Social Networking Services (SNSs) allow individuals and small online retailers to engage in consumer-to-consumer social commerce (C2C s-commerce). It is a growing phenomenon in Thailand. This article seeks to articulate the driving forces behind the massive growth of C2C s-commerce in Thailand. Our preliminary literature review and observation reveal a set of interrelated drivers or dimensions fueling this growth: personality and motivation, user-generated content, ICT, and virtual community management. We postulate that these drivers are the main building blocks for C2C s-commerce adoption in Thailand. Researchers and practitioners can refer to these dimensions as they seek to reexamine C2C s-commerce in the context of Thailand or other emerging economies.