• Google – Search the world’s information, including webpages, images, videos and more.
• Bing – Web search engine owned and operated by Microsoft.
• Yahoo! – Search, news and email.
• Baidu – Chinese web search company.
• Ask – Question answering web search engine.
• AOL – Web portal and search engine based in New York.
• DuckDuckGo – Search engine focused in protecting user privacy.
• Yandex – Russian search engine and web services.