Cloud Computing has attracted increasing attention from both researchers and practitioners as a new paradigm of information technology. Many recent studies on technological innovation have focused on two confronting models: rational-actor decision and social construction. However, both models are rarely used at the industry level of analysis. This paper adopts the lens of organizing vision, and presents a secondary analysis on the institutional processes of the forming of the Cloud Computing industry in Taiwan. In doing so it examines several key institutional forces, including (1) community discourse, structure, and commerce; (2) IS practitioner subculture; (3) adoption of core technology; and (4) adoption and diffusion. Our findings suggest that the dynamics of institutionalization of society and technology in the collective sense better explain the formation of the Cloud Computing industry embedded in a large community network than the linear rational choice paradigm. These findings also suggest that decision makers in both the private and public sector should be more aware of the institutional forces that motivate them to adopt IT innovation.