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Lesson 2: Using the Internet Topics Advantages and Disadvantages of Internet Research Evaluating Online Sources Keyword Searches.

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Presentation on theme: "Lesson 2: Using the Internet Topics Advantages and Disadvantages of Internet Research Evaluating Online Sources Keyword Searches."— Presentation transcript:

1 Lesson 2: Using the Internet Topics Advantages and Disadvantages of Internet Research Evaluating Online Sources Keyword Searches

2 ENGLISH COMPOSITION TWO Internet Research: Drawbacks As vast as the Internet is, it has its own set of drawbacks, including: Disorganized information Unreliable information It’s infinite… … it’s easy to go nowhere very slowly!

3 ENGLISH COMPOSITION TWO Internet Research: Advantages Even with its drawbacks, the Internet does have unique advantages: It’s a great source for topical information. It’s easy to find specific information. Online documents are easy to transport.

4 ENGLISH COMPOSITION TWO The Popular Web vs. The Specialized Web Two “Webs” exist… The Popular Web  Contains documents indexed by popular search engines such as Google. The Specialized Web  Is made up of huge databases difficult for the popular search engines to categorize.

5 ENGLISH COMPOSITION TWO Popular Search Engines Popular search engines on the visible web :  Google: http://www.google.com/http://www.google.com/  Yahoo!: http://www.yahoo.com/http://www.yahoo.com/  MSN: http://www.msn.com/http://www.msn.com/ The search coverage is done by conventional search engines

6 ENGLISH COMPOSITION TWO Specialized Search Engines Specialized Search Engines and Directories in the Invisible Web:  Invisible Web Directory: http://www.invsible-web.net/http://www.invsible-web.net/  Infomine: http://infomine.ucr.edu/http://infomine.ucr.edu/  Librarian's Internet Index: http://lii.org/http://lii.org/  Profusion: http://library.rider.edu/scholarly/rlackie/Invisible/Inv- Web.html http://library.rider.edu/scholarly/rlackie/Invisible/Inv- Web.html

7 ENGLISH COMPOSITION TWO How to Search the Internet Use more than one search engine. Use subject directories other people have put together. Use thoughtful keywords during your search. Boolean Searches  Use of the words AND, OR, and NOT between the search terms. Finding Articles EBSCO MasterFILE database indexes thousands of journals and magazines UnCover has a database of more than 18,000 magazines and journals.

8 ENGLISH COMPOSITION TWO Search Languages Controlled language searches require searching using the same words used to organize the information.  These types of searches are commonly used in subject matter indexes found in libraries.  Using a controlled language search requires familiarity with the language of the system so appropriate search terms are used.

9 ENGLISH COMPOSITION TWO Keyword Searches Using correct keywords will save time and streamline the endless Internet searches For example:  The key word Animal Rights, results in 158,000,000 hits.  The key word “Animal Rights”, results in 2,060,000 hits.  The key word “Animal Rights” ethics, results in 1,080,000 hits.  The key word “Animal Rights” ethics montana idaho results in 59,800 hits.

10 ENGLISH COMPOSITION TWO Boolean Connectors Boolean Connectors were developed more than a hundred years ago by the British logician, George Boole. Boolean searches involve  A system using a combination of keywords that maximizes the number of relevant results  requires the use of the words AND, OR, and NOT between the search terms.


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