Digital library development is a field moving from diversity and experimentation to isomorphism and homogenization. As yet characterized by a high degree of uncertainty and new entrants in the field, who serve as sources of innovation and variation, they are seeking to overcome the liability of newness by imitating established practices. The intention of this panel is to use this general framework, to comment on the channels for diffusion of knowledge, especially technology, in the area of digital library development. It will examine how different communities of practice are involved in shaping the process and networks for diffusion of knowledge within and among these communities, and aspects of digital library development in an emerging area of institutional operation in the existing library institutions and the specialty of digital librarianship. Within a general framework of the sociology of culture, the panelists will focus on the following broader issues including the engagement of scholarly networks and the cultures of computer science and library and information science fields in the development process and innovation in the field; involvement of the marketplace; institutional resistance and change; the emerging standards and standards work; the channels of transmission from theory to application; and, what 'commons' exist for the practitioners and those engaged with the theoretical and technology development field. The panelists will reflect on these processes through an empirical study of the diffusion of knowledge, theorizing on the implication of open source software in the development of digital libraries, and the standardization of institutional processes through the effect of metadata and Open Archive Initiative adoption.