"In a recent interview on the Today Show, Mark Zuckerberg — the young founder of Facebook — observed that the single most distinctive feature of his revolutionary social networking site was its capacity to let users control various degrees of privacy." [From the Design Observer.](http://designobserver.com/) (Jessica Helfand is a partner, with William Drenttel, in Winterhouse, a design studio in Northwest Connecticut. She is Senior Critic at Yale, where she is an Associate Fellow in Jonathan Edwards College.)

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