Baidu is a famous search engine and number one traffic ranked site in China. Baidu predominantly offer searches in Chinese and also offer English searches in partnership with Bing. If you are targeting users in China or your website is having pages in Chinese then it is a great idea to use Baidu custom search box in your site..
websites using the $ symbol on their website - meaning it may accept payment in this currency used in Israel.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.