"Anything that extends the network effect of users and deepens the pool of content is a plus, " he said.

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Conceding the point, Dow has cut back production of chemicals in North America and is content, in effect, to collect a fee for showing the Arabs how to run a chemical plant.

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The proposed change would, in effect, give the UN and other nations regulatory control over content.

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This drives traffic back to your site and creates a snowball effect as readers then share your content with their social networks.

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These tools will enable Facebook users to share Yahoo content with their friends, and create a viral effect through which Yahoo can attract more traffic.

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The APIs are structured in such a way that well-implemented code will collect valuable information about how the content is used as a side effect of educators, parents, and others simply doing their daily work.

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In this context, a network effect is a positive feedback loop whereby platforms with stronger ecosystem of developers, content and service providers attract more customers.

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