"This article examines the complexity of the internet control mechanisms in China by breaking it down to five layers, ranging from the government, service and content providers to webmasters and individual users. It inquires into the logic of the control mechanisms and how such logic is naturalized into organizations and individuals' everyday practices. It shows the dynamic between proactive, synchronized and reactive strategies and how the relationship between these components evolves in different phases. Through comparative online ethnography of the two most prominent Chinese forums located in China and the USA, QQ and MIT BBS, data analyses and interviews with regulators and content providers, this article aims at locating internet control in the historical trajectory and the socio-cultural specificity of China. More importantly, it reveals the effectiveness of these control mechanisms and the implications for the average internet user's everyday life." (Abstract)