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1. Key points.
_ New media technologies usually reinforce existing social networks or even work to isolate people.
example) Hikikomori : They isolate themselves away from society in their homes for a period exceeding six months. A hikikomori's days are characterized by long spells of sleeping, while their nighttime hours are often spent watching TV, extensively playing computer games, surfing the Internet, reading … .

_ When new media technologies facilitate new social networks, they simultaneously challenge existing social, political and economic relationships.

2. social networks

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(1) field
: Social network analysis is an interdisciplinary social science, but has been of especial concern to sociologists. recently, physicists and mathematicians have made large contributions to understanding networks in general (as graphs) and thus contributed to an understanding of social networks too.

(2) definition
:


_ social networks as technology




_ social networks as popular culture




_ social networks as art