Baidu, Inc. (Chinese: 百度; pinyin: Bǎidù, pronounced BY-doo in English), incorporated on January 18, 2000, is a Chinese web services company headquartered in the Baidu Campus in Haidian District in Beijing. Baidu offers many services, including a Chinese language-search engine for websites, audio files, and images.
Bing (known previously as Live Search, Windows Live Search, and MSN Search) is a web search engine (advertised as a "decision engine") from Microsoft.
Bing was unveiled by Microsoft CEO Steve Ballmer on May 28, 2009, at the All Things Digital conference in San Diego, California, for release on June 1, 2009.
MSN (originally The Microsoft Network; stylized as msn) is a collection of Internet sites and services provided by Microsoft. The Microsoft Network debuted as an online service and Internet service provider on August 24, 1995, to coincide with the release of the Windows 95 operating system.
Yahoo Search is a web search engine, owned by Yahoo Inc., and was as of December 2009 the second largest search directory on the web by query volume, at 6.42%, after its competitor Google at 85.35% and before Baidu at 3.67%, according to Net Applications.
Google is an American multinational corporation specializing in
Internet-related services and products. These include search, cloud
computing, software, and online advertising technologies. Most of its
profits are derived from AdWords.
