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Each year, Cisco's annual Visual Networking Index reveals some stunning facts about how the Internet is growing. This year's forecast is no different.

Cisco predicts that the Internet will quadruple in size over the next four years. In fact, the incremental growth in Internet traffic between 2014 and 2015 will be 17.2 exabytes per month. That growth alone is roughly the amount of all global Internet traffic recorded last year.

Last updated June 01 2011: 12:54 PM ET
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