Types of Search Engines
Crawler/Spider
A program which reads then indexes web pages. It bounces from
links between pages and sites. This index is a large database of all the sites
the crawler visited and read.
Examples of a Crawler/Spider:
Directories
Reviewed by human editors. These editors list and categorize the site. You
submit a site, and editors visit your site and editors write a review and/or a
description.
Examples of a directory:
Pay Per Click
Pay per click search engines allow you to advertise keywords.The cost is based
on your ranking and the amount of traffic generated.
Examples of a pay per click:
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Overture |
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7Search.com |
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FindWhat.com |
Hybrid Search Engines
Hybrid Search Engines search both Directories and Crawler based types of results
to be presented. Today, many search engines combine
a spider engine with a directory service.
The following is a list of the major Internet search
engines and directories.
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