History of search engines

Initially, when the Internet was just beginning to grow, the amount of information available was relatively small, and users were few. The main users of the Internet in the early stages of its development were employees of various research laboratories and universities. While the main purpose of the network was to exchange information between research institutions, its ability to be used to implement various research projects. In the initial stages of development, the relatively small size of the network, the area of information retrieval was much less relevant than now.

As an initial way of organizing access to information resources via the Internet used catalogs sites, Which is usually used thematic grouping of links. Pioneer in this area has Yahoo, which appeared in April 1994. Over time, the number of sites contained in the catalog increased, and the developers have created a special search engine directories. But such a system, of course, can not be called a search because the search was strictly limited to only those resources that were present at this site.

Brochures have been widely disseminated and used widely, but the internet is a dynamically developing, and together they developed and search methods. At the present time is difficult to find a system based on directories. It's very simple to explain, because even today the directory which will contain a huge number of resources that can provide access to only a small part contained in the information network. The biggest to date directory on the network, called Open Directory Project or DMOZIt includes information about the 5 million resources, which is quite a bit. After all, for comparison, the base of a world-famous search engine like Google has about 8 billion documents.

The first full-fledged search engine on the expanse of the Internet has appeared only in 1994, it was WebCrawler.

And a year later, in 1995, launching a search engine AltaVista and Lycos. The search engine AltaVista for many years held the forefront of the search for information online.

In 1997, Larry Page and Sergey Brin, students at Stanford University, have begun to implement a research project, which was developed by search engine Google, which today is the worldwide leader in the field of search.

Also in 1997, the month of September 23 the number of officially announced the creation of the Russian search engine Yandex, which is still market leader in search services in Russian segment of the network.

Today, there are only 3 search engines international level, it is MSN Search, Yahoo and Google, which have their own databases and search algorithms. Most everyone else on search engines as a basis using the results of the three above. For example, search engines: Mail.ru based on the search engine Yandex and search.aol.com based on the search engine Google, and search engines such as Lycos, AltaVista and AllTheWeb use database search engine Yahoo.

The leading search engine runet today is Yandex, the second place is Rambler, followed by Google, Mail.ru, Aport and KM.ru.