Baidu is a Chinese web services company incorporated on January 18, 2000 and headquartered in the Baidu Campus in Haidian District, Beijing, People’s Republic of China.
Baidu offers many services, including a Chinese language search engine for websites, audio files, and images. Baidu offers 57 search and community services including Baidu Baike, an online collaboratively-built encyclopedia, and a searchable keyword-based discussion forum.
Baidu was established by co-founders, Robin Li and Eric Xu. In September 2011, Baidu ranked 6th overall in the Alexa Internet rankings. It is estimated that there were 4.02 billion search queries in China of which Baidu had a market share of 56.6%. China’s internet-search revenue share in second quarter 2011 by Baidu is 76%.
In December 2007, Baidu became the first Chinese company to be included in the NASDAQ-100 index.
Baidu provides an index of over 740 million web pages, 80 million images, and 10 million multimedia files. Baidu offers multimedia content including MP3 music and movies, and is the first in China to offer Wireless Application Protocol (WAP) and personal digital assistant (PDA) based mobile search.