Privacy Online

Communications and personal information that are posted online are usually accessible to a vast number of people. Yet when personal data exist online, they may be searched, reproduced and mined by advertisers, merchants, service providers or even stalkers. Many users know what may happen to their information, while at the same time they act as though their data are private or intimate. They expect their privacy will not be infringed while they willingly share personal information with the world via social network sites, blogs, and in online communities. The chapters collected by Trepte and Rei.

Part I Approaches; 1 Introduction to Privacy Online; 2 Three Theories of Privacy: An Overview; 3 Negotiating Privacy Concerns and Social Capital Needsin a Social Media Environment; 4 Digital Crowding: Privacy, Self-Disclosure, and Technology; 5 Ethics, Privacy, and Self-Restraint in Social Networking; 6 The Social Web as a Shelter for Privacy and Authentic Living; 7 Fifteen Minutes of Privacy: Privacy, Sociality, and Publicityon Social Network Sites; 8 The Co-evolution of Social Network Ties and OnlinePrivacy Behavior; 9 Self-Protection of Online Privacy: A Behavioral Approach.

10 Online Self-Presentation: Balancing Privacy Concernsand Impression Construction on Social Networking Sites11 The Uses of Privacy Online: Trading a Loss of Privacyfor Social Web Gratifications?; Part II Applications; 12 (Micro)blogs: Practices of Privacy Management; 13 Privacy in Social Network Sites; 14 Mobile Privacy: Contexts; 15 Online Privacy as a News Factor in Journalism; Part III Audiences; 16 Adolescents' Online Privacy: Toward a Developmental Perspective; 17 The Elderly and the Internet: How Senior Citizens Dealwith Online Privacy; 18 Privacy and Gender in the Social Web; Index.