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Locating Information: Electronic Searching: Search Engines
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- Dewey Decimal System
- Using the Online Catalog
- Reference Tools
- Electronic Searching
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The web is a very interesting medium for locating information:
1. Anyone can publish any kind of "information."
2. A complete list of web sites does not exist.
3. There are no official organizers, catalogers, or evaluators.
4. Sites constantly change; new sites are created and old sites
disappear.
5. Finally, there are no standards for web search tools.
When you use the web for research, don't assume:
"You can find it faster."
"The information is more current."
"The information is just as reliable."
Searching is not evaluating. Given the nature of web information,
it's vital to evaluate the web pages you dig up. See Evaluating
Web Pages for things to consider when evaluating a web page.
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On this page, "web pages" means the
"free web" or web sites anyone can access, not the web-based
research tools like the databases that the library subscribes to
for District 4J students and faculty.
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Best used for: browsing
subjects; finding quality web sites.
Internet Public Library | |Open
Directory | Yahoo!
Search Tips:
- When using a directory's keyword search option, note the subject
categories your search retrieves;
- Best used for: browsing subjects; finding quality web sites.
Directories organize web sites by categories (i.e. subjects). People
who work on directories decide in which category a web site should be
listed. Since directories are built and maintained by people, directories
include far fewer web sites than search engines. However, directories
are the best place to begin browsing a subject, and most directories
focus on including quality web sites.
Best used for: finding specific sites
or specific information.
Search Engine Watch
Do you want to know how to USE search engines to actually FIND something
? This is the place!! It contains the world's largest collection of
directory and search engine tips, tricks, reviews, and guides. A very
helpful site at SearchEngineWatch is "Search
Engine Math".
Search Tips:
- Use more than one search engine;
- Explore each search engine's various search options;
- Don't assume the first hit is the best one;
- But if you don't find what you are looking for in the first 25 hits,
modify your keywords and search again.
Search engines use software called spiders, webcrawlers, or bots to automatically
collect the words on millions of web pages. These words are fed into a
searchable database. So when you search a search engine, you are not searching
the Web -- you are searching that search engine's index of web pages collected
by its spider in the recent (or not-so-recent) past.
Relevancy software determines in what order hits are listed. Search engines
are extremely incomplete in terms of retrieving most of what is available.
Also, there is little overlap between the search engines' databases. Therefore,
use more than one search engine on a regular basis.
Visit the Electronic Searching and Keyword
searching page for background concepts.
Best used for: searching for obscure
keywords; getting an overview of what's available.
DogPile | Ixquick
| Metacrawler
Search tips:
- Keep your search simple -- use only a few keywords;
- Note the search engines used by a particular metasearch engine.
Metasearch engines send your keywords to a few search engines and give
you the combined search results. Metasearch engines can't handle complex
searches, so keep your search terms short and simple.
Best used for: finding the most popular
types of information (weather, stock quotes, sport scores, etc.)
Go.com | Lycos
| Yahoo!
Portals attempt to provide such a wide variety of information and services
that one would rarely need to browse elsewhere on the web. Portals are
designed for the general public. Most include a basic search engine
as well as a search directory.
Learn More About Searching
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Search Engine Showdown
An excellent source for statistical comparisons of search tools.
Comparisons of the search options each tool offers are also available.
Search Engine Watch
Provides news, commentary, and comparisons of search engines. This
site includes reviews of search engines and links to web
searching tutorials.
Web Searching from
About.com
The articles in the "In the Spotlight" column are useful.
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