Eric Gordon is Associate Professor of New Media at Emerson College in Boston. He is the author of The Urban Spectator: American Concept-cities from Kodak to Google (2010) and he is the director of the Engagement Game Lab, where he designs and studies digital games that enhance local civic engagement. Adriana de Souza e Silva is Associate Professor at the IT University of Copenhagen in the Design, Culture, Mobility, and Communication (DCMC) research group, and Associate Professor of Communication at North Carolina State University. She is the co-editor (with Daniel M. Sutko) of the book Digital Cityscapes: Merging Digital and Urban Playspaces (2009) and affiliated faculty with the NCSU Digital Games Research Center.

"In this regard, the present book is undoubtedly a fine posthumous support of the work of this visionary Thinker." (Regional Studies, 1 November 2011) "Recommended. All levels/libraries." (Choice, 1 October 2011) "The authors are clearly enthusiastic about this technology and its possibilities, yet they do address privacy concerns. Particularly interesting is their discussion of the ways in which net locality impacts political engagement and local government, and how location awareness is effecting other cultures." (Publishers Weekly , 30 May 2011)

• Acknowledgements. Introduction.1: Maps.2: Mobile Annotations.3: Social Networks and Games.4: Urban Space.5: Community.6: Privacy.7: Globalization.8 Conclusion.Index.