Speciality search engines - OCRNat

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Speciality search engines
definition
This is a search engine that is focused on one or two
particular specialty search engines or categories, for
example Yell.com, Yell uses categorise to make It
easier to find the information that is placed into the
site.
This type of search engine only works for a particular
type of subject and display. You can find engines
devoted to such diverse topics as computer research
papers, file and medical research sites.
This search engines is similar to directories because a
directory search engines like Yell.com uses Categories
to help searches to be found easier.
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