On the Internet for this purpose is the search engine, which can be called a web service. With its help you search pages in a large database for a given word, phrase, or other criteria. When you connect to the web portal ( eg, Google, Yandex, Rambler), we have the ability to specify search criteria, then click on the button labeled Type Search, Find or Search, and browse results. Cream, the portals are thematic catalogs.
After receiving the search results, do not rush to follow links found in the page view is not only the headers of these pages, but also additional information provided by search engine. In particular, you may be offered to view the results of related databases ( news, images, directories, files, etc. n. ) - Perhaps they too will be useful. Carefully review the contents of individual records found. As a rule, the search engine results in one or two records from each site and to view other displays a link that says, such as more results from. ( More results from site. ). Not knowing the purpose of these links, you may miss important information.
Use multiple search engines.
It should be remembered that the database search engines are not identical, because of differences mechanisms for gathering and indexing information (as well as for other reasons ), each of which contains entries that are missing in the databases of other search engines. So if you want the best possible full information on your issue, it makes sense to do the same request to several of the largest machines - and every time you will receive 20-30 % of new entries. Below are detailed descriptions of several search engines that have the most powerful database and using the most popular. It's about the opportunities presented in the pages of these machines.
Google.
During its existence, the search engine Google has managed to win the sympathy of the majority of Internet users. The main criterion for evaluating the sites, which is guided by Google, yavlyaetsyaih popularity. This factor, as well as the simplicity of the interface, the constant increase in the size of the database and filling it with the most popular content contribute to the rising popularity of Google itself. The uniqueness of this machine is that it allows you to either go to your chosen page of search results, or to a copy stored in the database, Google, allowing you to view even the pages, sites which are currently not available. In addition, Google is the best way to find information in newsgroups ( it allows you to find the Usenet news over the past 20 years), as well as image files, documents in PDF and other formats other than HTML. In a database search engine keeps records on more than eight pages illiardah.
Yandex.
The search engine Yandex (www. yandex. ru) today has the largest database of Russian-language search engines (more than 12 500 GB) and is the best in the Russian segment of Internet. Its history dates back to 1990 with the launch of the company ... Three years later, when the ... In particular, the opportunity to perform a search based orfologii the Russian language, and in October 1996 presented the first series of products are Yandex - Hndex. Dict ( morphological query expansion ) and Yapgkh. B ^ s (search for your site ). In the autumn 1997 and the site was open Yandex.
Dr.. To view a list of services you need from your home page to link to all services, is located below the input search terms.
Rambler.
The most trafficked search engine on the Russian Internet is Rambler (www. rambler. ru). Here you can enter a query with keywords, browse subject directories, and rating tables, get the latest reviews of financial and political news, etc. Dr.. And Rambler today is not only the most popular and most powerful search engine in RuNet ( among Russian sites). Its searchable database contains millions of records from more than 15,000 sites, has developed a flexible query language and the presentation of results. Home Rambler search engine provides links to the latest news.
Thanks to the efforts of a large group of programmers and linguists, notably uluchshilastochnost, completeness and relevance of search. Now, during the request processing Rambler analyzes not only the individual documents, but entire sites. However, despite the complicated methods of searching, speed of query processing has not diminished. The query language of the system is simple and understandable even for nachinayuschihpolzovateley. An interesting feature is the tracking system Rambler Top 100 ranking, which contains links to the most visited sites. Participate in the rating of about 90 000 sites combined for more than 50 categories.
kompus. ru.
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