Baidu is a Chinese language search engine and one of the largest service providers in China. It is used by over 70% of Internet users in the country, making it the most popular search engine in China. Baidu is unique in that it utilizes a form of artificial intelligence to learn the preferences of its users and provide them with more customized and relevant results. It also offers other services such as Baidu Maps and Baidu Cloud, which provide cloud storage and other services.