Mark Zuckerberg the the 25 year old founder and chief executive of Facebook says that privacy is no longer a social norm (eweekeurope):

…that people no longer have an expectation of privacy thanks to increasing uptake of social networking. Speaking at the Crunchie Awards in San Francisco this weekend, the 25 year-old web entrepreneur said: “People have really gotten comfortable not only sharing more information and different kinds, but more openly and with more people.”

“A lot of companies would be trapped by the conventions and their legacies of what they’ve built,” he said. “Doing a privacy change for 350 million users is not the kind of thing that a lot of companies would do.

“But we viewed that as a really important thing, to always keep a beginner’s mind and what would we do if we were starting the company now and we decided that these would be the social norms now and we just went for it.”

I would be a lot more impressed if someone who was a tad older than 25 and didnt have such a large stake in the commodification and commercialization of information decided what was a social norm. But the whole thing is also very familiar of the old quote (1999!!!) from Scott McNealy the CEO of Sun Microsystems (Wired)

You have zero privacy anyway… Get over it.