Sunday, May 10, 2009

Exercise 23: Searching Mechanisms

1. A program that automatically fetches Web pages. Spiders are used to feed pages to search engines. It's called a spider because it crawls over the Web. Another term for these programs is webcrawler. (Webopedia, 2009). It provides as a search engines like the yahoo search or google search.
2. A search engine that queries other search engines and then combines the results that are received from all. In effect, the user is not using just one search engine but a combination of many search engines at once to optimize Web searching. For example, Dogpile is a metasearch engine (Webopedia, 2009)
3. User meta-tag built it under your web page, use the search keyword as accurate describe your page, subcribe to the major web search sites, in order increase the chance of getting a good site ranking.
References :
1. Webopedia, 2009 " Spider"
2. Webopedia, 2009, "Metasearch Engine"

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