Reach : Today
Facebook have 800 million users. It means that Facebook
have 1/7 th part of the world's whole population. It does not mean the user of Facebook are online every
day, but it is a portrait of a large and engaged user
base. Dwell : In US,
users spends approx seven hours on Facebook in one month
while spends approx two hours on YouTube in one month.
That is lot of branding. A lot of information about user's
behavior, connections, and preferences being collected.
Lock-In : The
performance of social networking sites that have come
before Facebook, like Friendster. The many
people linked to on Facebook, the more difficult it is
to leave. Disconnecting from this network is not
as easy as just moving to a different social networking
sites like Google+ and Orkut.