1. Adamic, L. A., & Adar, E. (2003). Friends and Neighbors on the Web. Social Networks, 25, 211–230.
2. Ahlqvist, T., Bäck, A., Heinonen, S., & Halonen, M. (2010). Road-Mapping the Societal Transformation Potential of Social Media. Foresight, 12(5), 3–26.
3. Akar, E., & Topcu, B. (2011). An Examination of the Factors Influencing Consumers’ Attitudes Toward Social Media Marketing. Journal of Internet Commerce, 10, 35–67.
4. Bernoff, J., & Anderson, J. (2010). Social Technographic Redefined. Retrieved March 6, 2011, from http://www.forrester.com/empowered/ladder2010
5. Bezjian-Avery, A., Calder, B., & Iacobucci, D. (1998). New Media Interactive Advertising vs. Traditional Advertising. Journal of Advertising Research, 38, 23–32.