Yandex - Russian IT company, which owns the eponymous search engine on the Web and Internet portal.

The search engine, Yandex is one among the top search engines and the world leader in runet the number of search queries processed. Official Search Engine Yandex.Ru was announced on Sept. 23, 1997 at the exhibition Softool.

Yandex main objective - to provide answers to user questions.

Questions are explicit and implicit. Explicit users ask questions in the search box, and Yandex is responsible for them in the search results pages. On the implicit questions, such as "What is the weather", "is there now something important", "can I get around the city" Yandex is responsible for its reference services.