List of Tables

ix

Foreword

xi

Acknowledgments

xvii

Summary of Findings

xix

Part 1: Introduction

1

Part 2: Institutions

5

Part 3: Social Networks

35

Part 4: Network Infrastructure

53

Part 5: Digital Products

69

Part 6: Civic Engagement

83

Part 7: Embedded Networks

103

Part 8: Formal Education

119

Part 9: Democratic Processes

137

Part 10: Families

149

Part 11: Extreme Communities

163

Part 12: Politics

173