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

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Presentation transcript:

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

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!

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.

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.

ENGLISH COMPOSITION TWO Popular Search Engines Popular search engines on the visible web :  Google:  Yahoo!:  MSN: The search coverage is done by conventional search engines

ENGLISH COMPOSITION TWO Specialized Search Engines Specialized Search Engines and Directories in the Invisible Web:  Invisible Web Directory:  Infomine:  Librarian's Internet Index:  Profusion: Web.html Web.html

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.

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.

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.

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.