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As sharing personal media online becomes easier and widely spread, new privacy concerns emerge -especially when the persistent nature of the media and associated context reveals details about the physical and social context in which the media items were created. In a first-of-its-kind study, we use context-aware camerephone devices to examine privacy decisions in mobile and online photo sharing. Through data analysis on a corpus of privacy decisions and associated context data from a real-world system, we identify relationships between location of photo capture and photo privacy settings. Our data analysis leads to further questions which we investigate through a set of interviews with 15 users. The interviews reveal common themes in privacy considerations: security, social disclosure, identity and convenience. Finally, we highlight several implications and opportunities for design of media sharing applications, including using past privacy patterns to prevent oversights and errors.

Spyware is a significant problem for most computer users. The term "spyware" loosely describes a new class of computer software. This type of software may track user activities online and offline, provide targeted advertising and/or engage in other types of activities that users describe as invasive or undesirable.While the magnitude of the spyware problem is well documented , recent studies have had only limited success in explaining the broad range of user behaviors that contribute to the proliferation of spyware. As opposed to viruses and other malicious code, users themselves often have a choice whether they want to install these programs.In this paper, we discuss an ecological study of users installing five real world applications. In particular, we seek to understand the influence of the form and content of notices (e.g., EULAs) on user's installation decisions.

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This is a collection of the reports on the Annenberg national surveys that explored Americans' knowledge and opinions about the new digital-marketing world that was becoming part of their lives. So far we've released seven reports on the subject, in 1999, 2000, 2003, 2005, 2009, 2010, and 2012. The reports raised or deepened a range of provocative topics that have become part of public, policy, and industry discourse. In addition to these reports, I've included three journal articles -from I/S, New Media & Society and the Journal of Consumer Affairs -that synthesize some of the findings and place them into policy frameworks. The journals have kindly allowed reproduction for this purpose. Electronic copy available at: http://ssrn.com/abstract=2423753Ame r i c a n s , Ma r k e t e r s , a n d t h e I n t e r n e t : 1 9 9 9 -2 0 1 2 J o s e p h T u r o wAmy B l e a k l e y , J o h n B r a c k e n , Mi c h a e l X . De l l i Ca r p i n i , No r a Dr a p e r , L a u r e n F e l d ma n , Na t h a n i e l Go o d , J e n s Gr o s s k l a g s , Mi c h a e l He n n e s s y , Ch r i s J a y Ho o f n a g l e , R o wa n Ho wa r d -Wi l l i a ms , J e n n i f e r Ki n g , S u L i , Ki mb e r l y Me l t z e r , De i r d r e Mu l l i g a n , L i l a c h Ni rElectronic copy available at: http://ssrn.com/abstract=2423753GreetingsIt's been 15 years since the first Annenberg national survey that explored Americans' knowledge and opinions about the new digital-marketing world that was becoming part of their lives. So, far, we've released seven reports on the subject, in 1999, 2000, 2003, 2005, 2009, 2010, and 2012. The reports raised or deepened a range of provocative topics that have become part of public, policy, and industry discourse. From 1999: "Our findings reveal that the rush to connect the Web to American homes is happening despite parents' substantial insecurity. In certain ways, the fears parents have revealed to us are similar to the fears parents have expressed during introduction of the movies, broadcast television, and cable TV. But the concerns are not merely repeats of past litanies [….] Parents fear the Web for its unprecedented openness-the easy access by anybody to sexuality, bad values, and commercialism. They also fear the Web for its unprecedented interactive nature-the potential for invading a family's privacy and for adults taking advantage of children. These fears are heightened among many parents because they don't believe they understand the technology well enough to make the best use of it. Yet they believe their children need it." From 2000: "American 10-17-year olds are much more likely than parents to say it is OK to give sensitive personal and family information to commercial Web sites in exchange for a free gift. Examples of such information include their allowance, the names of their parents' favorite stores, what their parents do on weekends, and how many days of work their parents have missed. It is wrong to think that simple discussions between parents and kids about what information...