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Using Search Engines
You can locate useful or interesting web sites by using a search engine.
This is an organization with a web site containing a huge database of
web site addresses. You key in a subject or a name that describes what
you are seeking, and the search engine provides you with a list or
selection of web site addresses that fit your inquiry. You then simply
click on an address to jump to that web site.
Although search engine is really a general class of programs, the term
is often used to specifically describe systems like Yahoo, Google, Alta
Vista and Excite that enable users to search for documents on the World
Wide Web and USENET newsgroups.
Typically, a search engine works by sending out a spider to fetch as
many documents as possible. Another program, called an indexer, then
reads these documents and creates an index based on the words contained
in each document. Each search engine uses a proprietary algorithm to
create its indices such that, ideally, only meaningful results are
returned for each query.
Preliminary Searching Hints
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Choose
a search engine, directory or library in accordance with the kind of
search you are doing and the kind of results you are seeking.
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Consider: Are you looking for a Web site? Information that might be
contained within Usenet? Academic articles that may only be
retrievable with gopher?
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Determine your aims: Do you want a specific hard-to-find document on
an esoteric subject, or general information on a broader topic? Do
you need to search the entire Web, or is what you are seeking likely
to be found on a number of sites, or only the most popular sites?
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In
making your choice, determine whether the information you are
looking for is likely to be in a page's title or first paragraph, or
buried deeper within the document or site.
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Use a
search engine's advanced features, if available, and read the help
files if you are unclear about its searching procedure.
Choosing Search Terms and Syntax
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Enter
synonyms, alternate spellings and alternate forms (e.g. dance,
dancing, dances) for your search terms.
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Enter
all the singular or unique terms that are likely to be included in
the document or site you are seeking.
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Avoid
using very common terms (e.g. Internet, people), which may lead to a
massive amount of irrelevant search results.
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Determine how your search engine uses capitals and plurals, and
enter capitalized or plural forms of your search words if
appropriate.
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Use a
phrase or proper name if possible to narrow your search and
therefore retrieve more relevant results (unless you want a large
number of results)
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Use
multiple operators (e.g. AND, NOT) if a search engine allows you to
do so.
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If you
receive too many results, refine and improve your search. (After
browsing the results, you may become aware of how to use NOT - e.g.
Boston AND hockey AND NOT Bruins)
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Pay
attention to proper spacing and punctuation in your search syntax
(i.e. no space when using + means +term not + term)
Major
Search Engines and Directories
Google
http://www.google.com
Yahoo
http://www.yahoo.com
Ask
Jeeves
http://www.askjeeves.com
AllTheWeb.com
http://www.alltheweb.com
AOL
Search
http://aolsearch.aol.com
(internal)
http://search.aol.com (external)
HotBot
http://www.hotbot.com
Teoma
http://www.teoma.com
AltaVista
http://www.altavista.com
Gigablast
http://www.gigablast.com
LookSmart
http://www.looksmart.com
Lycos
http://www.lycos.com
MSN
Search
http://search.msn.com
Netscape Search
http://search.netscape.com
Open
Directory
http://dmoz.org/
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