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Abstract
The issue of information diffusion in small-world social networks
was first systematically brought to light by Mark Granovetter
in his seminal paper “The Strength of Weak Ties”
in 1973 and has been an area of active academic studies in
the past three decades. In this review, I discuss information
proliferation mechanisms in massive online social networks
(MOSNs—networks with thousands and millions of members).
In particular, I address the following aspects of information
diffusion processes: the role and the strategic position
of influential spreaders of information; the pathways
in the social networks that serve as conduits for communication
and the flow of information; mathematical models
describing the proliferation processes; short-term and longterm
dynamics of information diffusion, and secrecy of information
diffusion.
1 Background
Social networks as abstract means of representing relations
and communications within and between social groups of
arbitrary size, and information dissemination in them, have
been an object of active studies for the greater part of the
XXth century—see Davis [5] and Rogers [24] who reviewed
506 diffusion studies, though without proper sociometric information.
In what follows I present a brief overview of