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Internet-Search

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Internet Search Tools
1.01- Understand Internet search
tools and methods.
Two Categories of Search Tools
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Search Engines
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Individual search engine
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Meta-search engine
Subject Directories
1.01 Understand Internet search tools and methods.
Slide 2
Individual Search Engines
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Individual search engines use computer
programs called “spiders” to match key
search words with the web pages that
contain them.
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Returns a large volume of results
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Information is not filtered for validity, authenticity,
or adult content
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Results are returned in the form of links to sites
that match terms used in the search
1.01 Understand Internet search tools and methods.
Slide 3
Take a look at search engines
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www.yahoo.com
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www.Ask.com
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www.Google.com
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www.Bing.com
1.01 Understand Internet search tools and methods.
Slide 4
Meta-search Engines
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Meta-search engines send requests for
information to several search engines
simultaneously and compile the results.
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Duplicates are eliminated, thus yielding fewer
results
Note: Google Custom Search Engine allows
the user to select which search engines will
be used
1.01 Understand Internet search tools and methods.
Slide 5
Take a look at meta-search engines
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http://www.yippy.com/
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http://www.mamma.com
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http://www.dogpile.com/
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www.excite.com
1.01 Understand Internet search tools and methods.
Slide 6
Subject Directories
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Developed and maintained by humans
(instead of software robots) to search broad
subject categories and their descriptions.
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More reliable than search engines
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Provide broad categories of information that
allow users to drill down and narrow search
results
1.01 Understand Internet search tools and methods.
Slide 7
Subject Directories (Continued)
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Often used in research by government
agencies, medical industries, and
educational institutions
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May be referred to as research database or
searchable database
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Results may include non-HTML formats,
such as PowerPoints, PDF documents,
script, and photographs
1.01 Understand Internet search tools and methods.
Slide 8
Take a look at subject directories
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www.libraryresearch.com
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http://www.eric.ed.gov/
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http://dir.yahoo.com/
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http://infomine.ucr.edu
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http://www.ipl.org/
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http://www.about.com/
1.01 Understand Internet search tools and methods.
Slide 9
Compare
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Suppose you are planning a vacation
camping trip in one of the NC State Parks.
Compare the results of each search tool by
searching for the words NC State Parks.
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www.google.com – 55+ pages of results
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www.dogpile.com – 3 pages of results
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http://www.lii.org/ - 4 results
1.01 Understand Internet search tools and methods.
Slide 10
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