Introduction 1 History of the Concept Kurt Lewin's "Theory of Channels and Gate Keepers", David Manning White and "Mr. Gates" Other Gatekeeping Models Gatekeeping and the General Communication Process 2 The Gatekeeping Process Antecedents of Gatekeeping Social Roles of Gatekeeping 3 Theorizing About Gatekeeping Individual Level Communication Routines Level Organizational Level Extramedia, Social/Institutional LevelIntroduction 1 History of the Concept Kurt Lewin's "Theory of Channels and Gate Keepers", David Manning White and "Mr. Gates" Other Gatekeeping Models Gatekeeping and the General Communication Process 2 The Gatekeeping Process Antecedents of Gatekeeping Social Roles of Gatekeeping 3 Theorizing About Gatekeeping Individual Level Communication Routines Level Organizational Level Extramedia, Social/Institutional Level Social System Level 4 A New Gatekeeping Model 5 Future Research References Author Index About the Author