D. Linda Garcia, Ellen Surles, and Qi Chen explore the role of institutional 'interfaces' that support communication between different categories of actor within policy making processes--in this case, the Office of Technology Management (OTA) with regard to technology policy and the more recent role of the blogosphere in media ownership debates. Because policy processes are composed of discrete but overlapping activity fields, the most effective actors are those who can span fields. The relative balkanization of discourse on the blogosphere in the media ownership debates suggests caution regarding its suitability for this role.