Search engines are like websites where you are facilitated to search anything on Internet by provided search facility. Major search engines are Google, Yahoo and Bing (MSN).
There are two basic types of search engines. Text based search engines and directory based search engines.
Text based search engines: These types of search engines perform search on searched query match. It means there should be enriched content and SEO friendliness in your website to be ranked on these types of search engines.
Directory based search engines: These types of search engines perform search and extract results from their own database. To get ranked on these types of search engines, you have to keep updating your website. Updated results are placed on higher ranks.
Some search engines provide only answers. Means, you can only search answers instead of products in those search engines. There are many products specific search engines in which there are only specific products that can be searched. Such as songs search engine, image search engines, answer search engines, video search engines and so on.
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