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   Google:

   • Description: Google is the most dominant search engine globally, handling over 90% of all internet searches. It was founded in 1998 by Larry Page and Sergey Brin and has since become a technology giant, offering a wide range of services beyond search, including Gmail, Google Maps, YouTube, and the Android operating system.
   • Key Features: Google is renowned for its powerful search algorithms that deliver accurate and relevant results. It utilizes sophisticated algorithms and machine learning to understand user intent and provide the most relevant information.
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3. Bing:

   • Description: Bing is Microsoft’s search engine, launched in 2009 as a successor to Live Search. While it has a smaller market share than Google, it has gained popularity for its visually appealing homepage that features a daily changing background image and integration with Microsoft’s services like Microsoft Office Online.
   • Key Features: Bing focuses on providing a visually rich search experience, offering features like video previews, image search enhancements, and a rewards program called Bing Rewards.
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5. Yahoo:

   • Description: Yahoo Search is powered by Bing under a partnership between Yahoo and Microsoft. While Yahoo has faced competition challenges, it still has a significant user base. Yahoo provides a variety of services, including Yahoo Mail, Yahoo Finance, and Yahoo News.
   • Key Features: Yahoo Search aims to deliver comprehensive search results, and its interface incorporates news, images, and other content alongside traditional search results.
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   Baidu:

   • Description: Baidu is the leading search engine in China and was founded in 2000 by Robin Li. It has a dominant presence in the Chinese internet market, offering not only search services but also other online services like Baidu Maps, Baidu Baike (similar to Wikipedia), and Baidu Cloud.
   • Key Features: Baidu is tailored to the Chinese language and market, with features such as image search, voice search, and integration with various online services popular in China.

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8. Yandex:

   • Description: Yandex is the leading search engine in Russia, founded in 1997. Apart from search services, Yandex offers a range of other services, including Yandex Maps, Yandex.Mail, and Yandex.Translate.
   • Key Features: Yandex places a strong emphasis on understanding the Russian language and context, providing localized search results. It also offers specialized search services for images, videos, and news.

These search engines have their unique features and cater to different regions, reflecting the global diversity in internet usage. Keep in mind that the popularity of search engines can evolve, and new developments may occur after my last update in January 2022.