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【标题】The biggest fortunes built on free
【摘要】From the Forbes 400 list, the following are the billionaires who made their money on businesses whose products are primarily free to consumers (I didn't include diversified media tycoons, such as Rupert Murdoch and Barry Diller, even though much of their business is free-to-air broadcast and web media. That's because it's too hard to separate the free bits from their pay-media businesses, or to say which is bigger.) #13 Sergey Brin $15.9 billion, Google #14 Larry Page $15.8 billion, Google #54 P... (04-09 12:43)
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