23. References Burbary, K. (2011) Facebook Demographics Revisited – 2011 Statistics. http://www.kenburbary.com/2011/03/facebook-demographics-revisited-2011-statistics-2/ Gilbert, S. (2009) Social Network Marketing: What works? Q & A with Sunil Gupta. Harvard Business School Executive Education. http://www.exed.hbs.edu/assets/Pages/workingknowledge.aspx?wkid=6187 Girollet, C. (2011). Internet Marketing Blog. www.cotygirollet.com/blog/ Iyengar, R., Han, S & Gupta, S. (2009). Do friends influence purchases in a social network? Harvard Business School Jones, J., Gaffney-Rhys, R. & Jones, E. (2011). Social network sites and student-lecture communication: an academic voice. Journal of Further and Higher Education. University of Wales. Newport. The Coca Cola Friendship Machine http://youtu.be/Bj3QLLTFDX8 Turner J. & Shah R., (2011) How to make money with social media: An insider’s guide on using new and emerging media to grow your business . Pearson Education, New Jersey Wasserman, T. (2011) Coca-Cola’s Friendship Machine Rewards Cooperation With Cokes http://mashable.com/2011/04/29/coke-friendship-machine/ http://socialmediamediasres.wordpress.com/2011/04/29/coca-colas-friendship-machine-meets-the-social-machine/ http://www.baby-kingdom.com