1. Boase, J., Wellman, B.: Personal Relationships: On and Off the Internet (2006)
2. McLuhan, M.: Understanding Media: The Extensions of Man. Cambridge: MIT Press. In: O’Reilly (O’Reilly, 2005) Adamic, L. A., & Adar, E. (2003). Friends and Neighbors on the Web. Social Networks (1964)
3. Koorn, R., van Gils, H., ter Hart, J., Overbeek, P., Drs. Tellegen, R.: Privacy-enhancing technologies white paper for decision-makers
4. Alexander, A.: The Egyptian experience: sense and nonsense of the internet revolution. Details of the Internet shutdown and restoration can be found on the Renesys blog, J. Cowie (27 January, 2011; 2 February, 2011)
5. Shehab, M., Squicciarini, A., Ahn, G.-J., Kokkinou, I.: Access control for online social networks third party applications. www.Sciencedirect.Com Journal Homepage: www.Elsevier.Com/Locate/Cose Comput. Secur. 31(2012) 897E–911. ISSN 0167-4048/$ E See Front Matter © 2012 Elsevier Ltd. All Rights Reserved. http://dx.doi.org/10.1016/J.Cose.2012.07.008