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15
Classification of Social
Networks Incorporating
Link Types
15.1 INTRODUCTION
Social networks are platforms that allow people to publish details about themselves and to con-
nect to other members of the network through links. Recently, the population of such online social
networks has increased signicantly. For instance, Facebook now has close to a billion daily active
users (see http://newsroom.fb.com/Company-Info/). Facebook is only one example of a social net-
work that is for general connectivity. Other examples of social networks are LinkedIn (profes-
sional), Last.fm (music), orkut (social), aNobii (books), and the list continues.
Each ...