This facebook thing, having started in a university campus, always seemed like a kid´s or a teenagers´ business to me.
In the New Yorker issue of May 16 2011 there is this poem by Sherman Alexie:
"Welcome to the endless high-school
Reunion. Welcome to past friends
And lovers, however kind or cruel.
Let´s undervalue and unmend
The present. Why can´t we pretend
Every stage of life is the same?
Let´s exhume, resume, and extend
Childhood. Let´s all play the games
That occupy the young. Let fame
and shame intertwine. Let one´s search
For God become public domain.
Let church.com become our church.
Let´s sign up, sign in, and confess
Here at the altar of loneliness."
By the way, listen carefuly to what Eli Pariser has to say: