The search engine Google opened its database to other sites so they can create their own specialized search engine and configured according to their specific needs. This free service is another attempt by the firm to expand its influence in the network advertising. A part of the database Web, it also incorporates other databases services such as: Google Groups allows you to create mailing lists, interact with them and read Usenet messages. Google Directory provides a useful method that allows narrow your search based on a particular topic. Google Print and Google Book Search is a search engine for books. Search books (titles and content) that Google itself has been digitized and included in its database. Google Image Search is Google's image search engine, containing more than one million images of all types: photos, drawings, paintings and more. Google News is a news portal added by Google computers.

The entire process is automatic. Google Catalogs search catalogs. Froogle is a product finder. Used to find the cheapest price of a product and the comparison of these different online stores. Google Scholar search for information on documentation of academic / scientific. Key Features Google is the most comprehensive search engine and more weight as a supplier search, this statement is based on the clear preference of users worldwide who go through Google at least once a day and came to dominate the world market share of around 60% and 99% in the Spanish market. A key function of Google to open PDF documents found in HTML, when you can not find a page or a different version is expected to leave to explore their memory using the function of 'Cache', also to correct the spelling of the search through the Google Suggest feature (Did you mean …?) and advanced search features to explore what other sites have links to certain, or which is mentioned, a valuable tool for webmasters. Google search features displays only those pages that include all search terms.

It is not necessary to include "and" between terms. To narrow your search a little more, add more terms. Google ignores the common words and characters known as empty words. Google automatically discarded terms like "and". Com, "as well as certain single digits or letters, because these terms rarely help narrow your search. Neither distinguishes accents, umlauts or the letter n. Not case sensitive. All letters, regardless of how they are written, are considered sensitive. For example, searching "google", "GOOGLE" or "Google" will generate the same results. To provide more accurate results, Google only searches whole words, ie not using the automatic truncation, it just returns the terms entered into the search box. For example searching for "this" will not return searches containing "statistics" or "stadium." Google searches for words, no sentences with the words in any order you have written in the search box. The word order matter, is not symmetrical, does not look the same result php programming a , programacion PHPA Each Google search result contains a fragment of the Web page showing the context in which the words appear on that page. Google takes into account the country where you are, even within the same language, is not the same search that although always look in Castilian. No truncated but if we can use the asterisk * to replace one, two or more words. Often combined with the operator (""), "sports shop *" compare results with "sports store"). Autostemming presented in searches. We may also use the operators (+, -) as phrase connectors.