If 2012 turns out to be the year when the online privacy sector really takes off, then the "private social network", EveryMe is likely to become one of the big new stories in Silicon Valley. Formed a year ago in Menlo Park out of the Y Combinator stable, EveryMe now boasts $1.5 million in start-up capital and over 500,000 users of its "circles" (heard that one before, eh?) product which is available as both Android and iPhone apps. As co-founder Vibhu Norby told me when he came into our San Francisco studio, EveryMe was originally founded as an address book company but "pivoted" to a private social network when it became obvious that the world was "waking up" to the problems of online privacy."We do not sell data to advertisers," Norby told me.You can't get any more explicit than that.