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A Basic Understanding of Internet Search Engines The database system that has been designed to categorize and index the internet address is the internet search engine. Another basic fact that you need to know about the internet search engine is that it comes in four basic types. The automatic internet search engine is the first type. This is the type that is not only based on information but also makes us of software programs in order to be able to analyze, collect and sort. Regarding the software programs, there are terms that are being commonly used and these are the crawlers, robots and spiders. The web pages are being crawled through by these spiders so that they will be able to have information collected. The information that has been collected will then be analyzed and after doing so it will now be categorized as index. This means that you are conducting a search on the index when you will make use of a the internet search engine when doing a research. You have to keep in mind that your results will be based on two things: relevancy of your query and the contents of the index. The second kind of internet search engine that you should know of is none other than what is called as the directories. What you need to know about this kind of internet search engine is that there are human editors that have been able to compile and review various web sites. One of the many things that you need to know about these human editors is that they will be the ones that will be deciding as to which of the web sites they have collected belong to what categories and list.
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The third internet search engine is called as the meta search engines. The first thing that you need to be aware of with the meta search engine is that it makes use of the automated technology. It makes use of this kind of technology in order to be able to gather information from crawlers. The researcher will now be able to have a summary of the gathered information in the form of results.
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The fourth internet search engine is called as the pay per click or PPC for short. The dollar amount that you will pay will be the basis of your ranking with the pay per click. This will now therefore mean that one will be getting the highest ranking if he is the highest bidder as well. So that the internet search engine will be able to compile their database, they make use of the spiders which is another basic fact. The internet will be crawled through by these spiders in order for them to be able to identify various web pages. The URLs will now be available for the internet users for the reason that the spiders will be able to index the content of the web pages.