What is Baidu ?

What is the the fourth most visited site on the internet ?? ((As of December 2005; Google Press)

Baidu.

Here is an extract from Wikipedia. Here is whole the article

Baidu (百度) is a popular Chinese search engine. Its design resembles that of Google and features the capability to search news and images, among other functionalities. Baidu claims itself the biggest search engine in Chinese language. Perhaps the most popular feature about Baidu that Google does not support is the MP3 search. This is very similar with the image search of Google, however, it searches for MP3/WMA/SWF files instead of image files. The MP3 search are mainly used for Chinese Pop Music, and the search results are surprisingly accurate. Though it's illegal in most of the world, Baidu can do this as the Chinese law doesn't prohibit putting music on the internet, and Baidu is under Chinese law.

Baidu.com had its initial public offering (IPO) the morning of Friday, Aug 5, 2005. Baidu.com opened at $27/share. At the close of Nasdaq trading on that Friday, Baidu.com shares closed at $122.54, up $95.54 from its opening price (a gain of 353%). However, over the next few trading days, Baidu stock pulled back rapidly, closing at $91.75 on August 10. Baidu.com is often called the "Google of China" due to its resemblance and similarity to Google. In fact, Google owns 2.6% of the company.

On September 14, 2005, the stock plunged 24% on the Nasdaq after two analysts said it was "overpriced."