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Marchex is leading in The Entire Web.
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DoubleClick AdExchange is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
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Marchex has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Shopping, Internet & Telecom and 224 other categories.
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DoubleClick AdExchange is leading in Automotive News.
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Marchex is leading in most countries, including United States, Russia, India, China and 138 other countries.
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DoubleClick AdExchange is leading in Germany and Panama.