Using incentives to spread information over a social network is certainly not a new idea.

使用激励来通过社交网络获得信息并非是一个新的想法。

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They recruit those who are trusted and well-liked to spread information or push through changes.

他们会组织受到信任和深受喜爱的员工来传播消息或推动变革。

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It's so easy to spread information now that it lasts longer and finds more niches - this trend is helping content travel further.

现在传播信息非常方便，信息可以持续更长时间，发现更多细分市场，这种趋势让内容传播得更远。

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The technology is helping public health services collect information to follow the spread of diseases and to better organize their work.

VOA: special.2010.05.03

Do not put words in my mouth." Information is often spread through word of mouth.

VOA: special.2010.06.20

Information from the Framingham study showed earlier that happiness can spread from person to person.

VOA: special.2009.12.22

Now, those who use social media to spread information are facing the same horrible persecution.

FORBES: Two People Killed For 'Posting Funny Things On The Internet' In Mexico

Every time men found a speedier way to spread information to each other, government made it illegal.

ECONOMIST: Michael Hart

Analysts say the Communist authorities in Beijing have become increasingly concerned about the speed with which weibo can spread information not controlled by official media.

BBC: China to extend controls over internet microblogs