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The old adage that success breeds success underpins most monopolies. Whether it’s search engines or social networks, hegemony stems from success. A good case in point is Google, which not only has the lion’s share of the search market, but it’s also the world’s most visited website according to Alexa’s ranking system. And Google-owned YouTube is the world’s third most visited website, testament to the popularity of video-sharing among the Web’s populace.