Focusing on intermediation in cultural production in a digital ecology consisting of multiple platforms mediating simultaneously converging and diverging industries, this study critically engages with the thesis that platforms act primarily as a disintermediation vector in a linear value chain within a single industry. With two empirical cases of intermediation in the emerging virtual celebrity sector – one organizing the recursive loop of prosumption, the other articulating authenticity against technological standardization and overproduction, the study shifts the focus away from questions of labor and agency of individual creators and unpacks the conditions of intermediation in the context of new industrial models of value creation, commodification, and division of labor. The empirical cases demonstrate that the implications of platforms for digital cultural production are paradoxical – while their business models lead to a centralized process of value capture, their flexible organizational forms may afford new distributed patterns of value creation.