This volume provides the basis for contemporary privacy and social media research and informs global as well as local initiatives to address issues related to social media privacy through research, policymaking, and education. Renowned scholars in the fields of communication, psychology, philosophy, informatics, and law look back on the last decade of privacy research and project how the topic will develop in the next decade. The text begins with an overview of key scholarship in online privacy, expands to focus on influential factors shaping privacy perceptions and behaviors-such as culture, gender, and trust-and continues with specific examinations of concerns around vulnerable populations such as children and older adults. It then looks at how privacy is managed and the implications of interacting with artificial intelligence, concluding by discussing feasible solutions to some of the more pressing questions surrounding online privacy. This handbook will be a valuable resource for advanced students, scholars, and policymakers in the fields of communication studies, digital media studies, psychology, and computer science.

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 Reinecke address questions arising from this disparity that has often been referred to as the privacy paradox. Works by renowned researchers from various disciplines including psychology, communication, sociology, and information science, offer new theoretical models on the functioning of online intimacy and public accessibility, and propose novel ideas on the how and why of online privacy. The contributing authors offer intriguing solutions for some of the most pressing issues and problems in the field of online privacy. They investigate how users abandon privacy to enhance social capital and to generate different kinds of benefits. They argue that trust and authenticity characterize the uses of social network sites. They explore how privacy needs affect users' virtual identities. Ethical issues of privacy online are discussed as well as its gratifications and users' concerns. The contributors of this volume focus on the privacy needs and behaviors of a variety of different groups of social media users such as young adults, older users, and genders. They also examine privacy in the context of particular online services such as social network sites, mobile internet access, online journalism, blogs, and micro-blogs. In sum, this book offers researchers and students working on issues related to internet communication not only a thorough and up-to-date treatment of online privacy and the social web. It also presents a glimpse of the future by exploring emergent issues concerning new technological applications and by suggesting theory-based research agendas that can guide inquiry beyond the current forms of social technologies.

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 Reinecke address questions arising from this disparity that has often been referred to as the privacy paradox. Works by renowned researchers from various disciplines including psychology, communication, sociology, and information science, offer new theoretical models on the functioning of online intimacy and public accessibility, and propose novel ideas on the how and why of online privacy.

The contributing authors offer intriguing solutions for some of the most pressing issues and problems in the field of online privacy. They investigate how users abandon privacy to enhance social capital and to generate different kinds of benefits. They argue that trust and authenticity characterize the uses of social network sites. They explore how privacy needs affect users' virtual identities. Ethical issues of privacy online are discussed as well as its gratifications and users' concerns. The contributors of this volume focus on the privacy needs and behaviors of a variety of different groups of social media users such as young adults, older users, and genders. They also examine privacy in the context of particular online services such as social network sites, mobile internet access, online journalism, blogs, and micro-blogs.

In sum, this book offers researchers and students working on issues related to internet communication not only a thorough and up-to-date treatment of online privacy and the social web. It also presents a glimpse of the future by exploring emergent issues concerning new technological applications and by suggesting theory-based research agendas that can guide inquiry beyond the current forms of social technologies.

Sabine Trepte, Markus Verbeet Journalismus und Wissenschaft tun sich nicht immer leicht miteinander. Denn mancher Jour- nalist und ebenso mancher Wissenschaftler pflegt Vorurteile und Vorbehalte. Die Journalisten sind angeblich nur auf die knallige UEberschrift aus und verstehen die Zusammenhange nicht. Die Wissenschaftler hingegen scheren sich angeblich nicht um den Rest der Welt und sorgen sich, dass sie missverstanden werden. Dabei sollten und koennten doch beide voneinander pro- fitieren: die Journalisten gewinnen spannende Themen fur ihre Berichterstattung, die Wissen- schaftler oeffentliche Aufmerksamkeit fur ihre Forschung. Dieses Buch will eine Brucke schlagen zwischen Journalismus und Wissenschaft. Es han- delt von einer journalistischen Idee, die mit wissenschaftlicher Begleitung zu einem grossen Publikumserfolg wurde: dem Wissenstest Studentenpisa, den der SPIEGEL in Zusammen- arbeit mit studiVZ im Jahr 2009 angeboten hat. Jeder Teilnehmer hatte 45 aus einer Auswahl von 180 Aufgaben zu loesen, die Fragen entstammten den Bereichen Politik. Geschichte, Wlrt- schaft, Kultur und Naturwissenschaften. Die Resonanz hat alle Erwartungen ubertroffen. Die Startseite des Tests wurde im Internet 1,5 Millionen Mal aufgerufen. Rund 700. 000 Teilnehmer klickten bis zur letzten Frage, und rund 400. 000 Teilnehmer forderten ein individuelles Feed- back an. SPIEGEL und SPIEGEL ONLINE berichteten in zahlreichen Artikeln uber die Ergeb- nisse. Diese stiessen auf grosses Interesse und sorgten teilweise fur grosses Erstaunen. Zugleich blieb das Gefuhl zuruck, dass sich aus den gesammelten Daten noch mehr Er- kenntnisse gewinnen lassen. Die Herausgeber haben deshalb Wissenschaftlerinnen und WIS- senschaftler eingeladen, den Datenschatz genauer zu untersuchen.