Corey Delaney's venture into online fame (or infamy) is a simple example of the need for use to be aware of the possible use and misuse of social networking.

 

Mark recommends the book Personal, Portable and Pedestrian: Mobile Phones in Japanese Life (Ito, Okabe and Matsuda) as an analysis of the impact of text messaging and mobile phones on youth culture and the extensive connectedness of Japanese youth. This extends to Australian culture. The book introduces the idea of "co-presence". Mark explains this co-presence behaviour in terms of Dunbar's research across species on maximum social group size and its relationship to neocortex ratio in the brain. This gives a social group size of around 150 for humans.

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