Analysis of information sources in references of the Wikipedia article "Stop Online Piracy Act" in English language version.
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(help)Wikipedia founder Jimmy Wales has threatened a knowledge "blackout" of the online encyclopedia to protest a US anti-piracy bill that could have serious ramifications for online service providers.
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(help)Wikipedia founder Jimmy Wales has threatened a knowledge "blackout" of the online encyclopedia to protest a US anti-piracy bill that could have serious ramifications for online service providers.
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