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What are the basic types of
search engines?
(web marketing teaching website www.wm23.com Feng Yingjian 2005-02-16)
with the development of search engine technology and market, there appear a variety of different types of search engines, all kinds of media on the search engine nouns are more and more, even create a dazzling feeling, such as interactive search engine, third-generation search engine, fourth-generation search engine, Desktop Search, address bar search, local search , personalized search engine, expert search engine, shopping search engine, natural language search engine, news search engine, MP3 search engine, image search engine ... How to become familiar with so many types of search engines as soon as possible, and how to use a variety of search engines as a network marketing tool? First of all, there is a clearer understanding of the types of search engines.
Although the search engine has a variety of forms and applications, if the search engine to distinguish between the working principle, search engine has two basic types: a pure technology-oriented Full-text search engine, such as Google, AltaVista, Inktomi, The principle is through the machine hand (that is, spider program) to the various web sites to collect, store information, and establish an index database for users to query. It should be noted that this information is not the search engine immediately retrieved from the Internet, usually said search engine, in fact, is a collection of a large number of Web site/page data and indexed by certain rules of the online database, such as the end of March 2004, Google included more than 4.2 billion pages, so that A large number of results can be fed back in a short period of time when a user retrieves it.
Another category called Classification directory, this "search engine" does not collect any information on the site, but the use of each site to "search engine" to submit the site information to fill in the keywords and Web site description and other information, after the manual audit editor, if the conditions of the site login, enter the database for query Yahoo is a typical representative of the classification directory, the domestic Sohu, Sina and other search engines are also developed from the category directory. The benefit of the classification directory is that users can be targeted to the directory to query their own needs of information, rather than technical search engine as the same time to feedback a large number of information, and the relevance of this information does not necessarily meet user expectations.
In essence, the search engine that uses robotic hand to retrieve web information automatically is the search engine in the real sense. Today's large Web sites generally have a "search engine" and "Classified directory" query, but some of the site's search engine technology from other providers to provide Full-text search engines, such as Yahoo has its own operating site classification directory, and used to use the web search engine, including Inktomi, Technology provided by companies such as Google. So from the point of view of user application, whether through the technical search engine, or the artificial classification of the search engine, can realize their own query information purposes (two forms can be obtained different information, the classification directory can only be retrieved to the relevant web site, and search engines can directly retrieve the relevant content of the page), So there is no need to strictly distinguish between these two concepts, but as a search engine. However, it should be noted that, because of the two types of search engine principles, resulting in a variety of search engine marketing differences, the need for different search engines to use different search engine marketing strategy, and therefore in the Network marketing research and application, it is necessary from the concept and principle to give a distinction.
However, there are some search engines operating in different ways than the two basic search engines, there are two more influential: one is "multiple search engine" (Meta search Engine), the other is called "Integrated Search Engine" (All Search Page). These two search engines are also developed on the basis of the two basic search engines, but they are different from the traditional search engine models. Because these search engines apply to network marketing in the basic ideas and methods there is no significant difference, so this is only a brief introduction.
The main difference between "multiple search engines" is that they do not have their own indexed databases as Full-text search engines do, but when users submit search applications, they combine and invoke multiple independent search engines, and then follow the rules set by multiple search engines to choose and sort and feed back to users. From the user's point of view, the advantage of the use of multiple search engines is to be able to obtain multiple source search engine (that is, the search engine is used to obtain the results of searching engines) results, but because of the multiple search engine in the information sources and technology are limited, so the search results are not ideal There are hundreds of multiple search engines at the moment, but no one has been as widely recognized by users as independent search engines like Google. The Savvysearch and MetaCrawler listed in table 2-1 are the first multiple search engines. Engine Watch (www.searchenginewatch.com), a professional search engine consulting site in the United States, ranked the 2003 's best multivariate search engine as follows:
(1) dogpile (http://www.dogpile.com)
(2) Vivisimo (http://www.vivisimo.com)
(3) mamma.com (http://www.mamma.com)
domestic multiple search engine is still in the initial stage, currently only a few sites began to dabble, there is no very strong brand of multiple search engines appear, but as a network marketing research, it is necessary to pay attention to this.
"Integrated search Engine" principle is quite simple, even do not need how much specialized core technology, its manifestation is: In a browsing interface at the same time linked to a number of search engines, users can choose to retrieve some or all of the search engine, one input keyword, you can get multiple search engine retrieval results. So this form is not actually an independent search engine, it should be a way of using the existing search engine, is to provide users with as many search results as possible to facilitate. As with multiple search engines, integrated search engines also do not have their own index database, even the search results can not be filtered and reordered, therefore, from the network marketing point of view, does not need to spend too much energy to give research, the site as long as the independent search engine has a good ranking effect, The same results are naturally found in integrated search engines. However, it is noteworthy that the integrated search engine for network marketers put forward a direction, that is, should let their own web site in as many search engines to get a good performance, especially do not omit the important search engine.
So, how do you understand the many search engine concepts mentioned at the beginning of this article? We can generally understand this: the existing new search engines are based on the two basic types of search engines on the basis of technological innovation, application changes, or the application of the field of segmentation, such as shopping search engine, can be understood as a search engine in the field of online shopping branch, The search engine only collects information on online shopping sites, regardless of other areas of information, so that it can be more targeted and professional. Considering the rapid development of the search engine, in the published books can not contain the new noun, Network marketing teaching website (www.wm23.com) will be in the network marketing Knowledge Base to introduce some new concepts, such as desktop Search, address bar search, local search, shopping search engine and so on.
