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Search engine marketing

Form of internet marketing

  • 14 min read
  • 7 chapters

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Through Digital marketing, Website and Advertising

Market

In 2007, U.S. advertisers spent US $24.6 billion on search engine marketing. In Q2 2015, Google (73.7%) and the Yahoo/Bing (26.3%) partnership accounted for almost 100% of U.S. search engine spend. As of 2006, SEM was growing much faster than traditional advertising and even other channels of online marketing. Managing search campaigns is either done directly with the SEM vendor or through an SEM tool provider. It may also be self-serve or through an advertising agency.

Search engine marketing is also a method of business analytics, which is mainly aimed at providing useful information for organizations to find business opportunities and generate profits. SEM can help organizations optimize their marketing and gather more audience and create more customers.

Google's market dominance

As of May 2026, Google remained the leading search engine worldwide with a market share of 90.39%. Bing ranked second with a 5.03% share, followed by Yahoo! (1.40%), Yandex (0.99%), DuckDuckGo (0.71%), and Baidu (0.53%).

In August 2024, a U.S. federal court ruled that Google's search engine was operated as part of an unlawfully maintained monopoly in the general search services market. During the trial, the US Department of Justice argued "Google hasn't just illegally cornered the market in search — it's squeezed online publishers and advertisers with a "trifecta" of monopolies that have harmed virtually the entire World Wide Web".

In 2025, Google began integrating paid advertisements directly into its AI Overviews feature, which generates AI-produced summaries at the top of search results pages. At Google Marketing Live in May 2025, the company announced that Search and Shopping ads within AI Overviews would roll out to desktop users in the United States, with global expansion planned later in the year. Research published in December 2025 found that ads alongside AI Overviews had grown from appearing on approximately 3% of AI Overview search results pages in January 2025 to roughly 40% by November 2025.

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