Neumann, , Silbermann and Sharp are three of 66 billionaires under 40 years old, a record for the Forbes list.

今年有66位40岁以下的富豪入选，创下了榜单的记录，诺依曼，希伯尔曼和夏普三人位列其中。 。

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Chris Silbermann, President of International Creative Management, a talent agency, says Facebook and Twitter function a bit like large digital water coolers.

国际创造管理公司(人才公司)的总裁Chris Silbermann表示Facebook和Twitter的运行有点像大型数字冷水器。

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Later Silbermann went to work at Google and worked on a quiz website.

FORBES: Ben Silbermann On How Pinterest Slowly Grew To Massive Scale

But over the last 12 months, Chief Executive Ben Silbermann has built up Pinterest's employee ranks.

WSJ: As Pinterest Grows, Startup Seeks $2.5 Billion Valuation

After leaving his job, Silbermann first built an iPhone app called Tote for shopping on the phone.

FORBES: Ben Silbermann On How Pinterest Slowly Grew To Massive Scale