Google Maintains Its Huge Lead in Search

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By Trey Thoelcke Published

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Not much of a surprise, but Google Inc. (NASDAQ: GOOG) was again the leader in the U.S. search market in September by a wide margin, according to comScore’s latest monthly analysis of the U.S. search marketplace.

Google sites had a 66.7% market share in September, followed by Microsoft Corp. (NASDAQ: MSFT) sites with 15.9% and Yahoo! Inc. (NASDAQ: YHOO) sites with 12.2%. The market share of Google ticked up 0.3% from August, that of Microsoft remained unchanged and Yahoo!’s slipped 0.6%.

Explicit core searches, which exclude contextually driven searches that do not reflect specific user intent to interact with the search results, fell 4% in September to 16.3 billion. Google sites saw 10.9 billion of those searches, which was also down 4%. Searches of Microsoft sites declined 4% to nearly 2.6 billion searches, followed by Yahoo! sites down 9% to 1.9 billion searches.

Ask Network and AOL Inc. (NYSE: AOL) were a distant fourth and fifth, respectively, in both market share and number of explicit core searches.

comScore’s monthly survey of the search marketplace captures the search behavior at almost 200 search properties in 41 individual countries and worldwide, measuring the full breadth and depth of consumer search activity.

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About the Author Trey Thoelcke →

Trey has been an editor and author at 24/7 Wall St. for more than a decade, where he has published thousands of articles analyzing corporate earnings, dividend stocks, short interest, insider buying, private equity, and market trends. His comprehensive coverage spans the full spectrum of financial markets, from blue-chip stalwarts to emerging growth companies.

Beyond 24/7 Wall St., Trey has created and edited financial content for Benzinga and AOL's BloggingStocks, contributing additional hundreds of articles to the investment community. He previously oversaw the 24/7 Climate Insights site, managing editorial operations and content strategy, and currently oversees and creates content for My Investing News.

Trey's editorial expertise extends across multiple publishing environments. He served as production editor at Dearborn Financial Publishing and development editor at Kaplan, where he helped shape financial education materials. Earlier in his career, he worked as a writer-producer at SVE. His freelance editing portfolio includes work for prestigious clients such as Sage Publications, Rand McNally, the Institute for Supply Management, the American Library Association, Eggplant Literary Productions, and Spiegel.

Outside of financial journalism, Trey writes fiction and has been an active member of the writing community for years, overseeing a long-running critique group and moderating workshop sessions at regional conventions. He lives with his family in an old house in the Midwest.

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