Well, I just posted my vacation photos to my wall!
That medium is based on an illusion of intimacy, of fellowship and community. There's nothing there, there
Did a great deal of experimentation, real political paid work in '07 and '08 researching that medium, particularly Facebook and Twitter, and came to the conclusion, with notable exceptions, both companies are doomed to the same fate as the Chat Rooms on the old AOL. MySpace will soon no longer be gathering dust with the Commodore '64's
People don't need either medium to keep up with the maximum 100 or so people any single average human can keep tabs on. It takes a while for the dazzled to catch on. The young kids turned away as soon as Mom or Dad, or their grandparents, signed up.
There is a noise level and a law of resonance, a social wave function for some people, that collapsed three or four years ago. Facebook and Twitter are dead for people in love with reality.