GATEKEEPING大众传媒把关 中文注释版PDF电子书下载

Introduction 1

1　History of the Concept 7

Kurt Lewin's"Theory of Channels and Gate Keepers" 8

David Manning White and"Mr.Gates" 14

Other Gatekeeping Models 16

Gatekeeping and the General Communication Process 23

2 The Gatekeeping Process 28

Antecedents of Gatekeeping 28

Social Roles of Gatekeeping 41

3 Theorizing About Gatekeeping 50

Individual Level 52

Communication Routines Level 74

Organizational Level 82

Extramedia,Social/Institutional Level 94

Social System Level 105

4 A New Gatekeeping Model 111

5 Future Research 116

References 120

Author Index 131

About the Author 136