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Searching The Internet

Searching The Internet. Practical Strategies. URLs . Look at the URL to determine what type of organization produced the site. . com is a commercial site. . edu is an academic site. . gov is a government site. . org is usually a non-profit organization.

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Searching The Internet

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  1. Searching The Internet Practical Strategies

  2. URLs • Look at the URL to determine what type of organization produced the site. .com is a commercial site. .edu is an academic site. .gov is a government site. .org is usually a non-profit organization. .net is a network service provider. .mil is a military site. • What domain name is used to indicate a Korean Company?

  3. And More URLs • If you found a page on phrasal verbs, called phrasals.htm within the grammar section of a site called www.studenthelp.com can you suggest what the full URL might be? www.studenthelp.com/grammar/phrasals.htm • How can awareness of the URL structure be useful... • When evaluating websites? • When dealing with broken links?

  4. Examples of Search Engines • Google http://www.google.com • Northern Light http://www.northernlight.com • Lycos http://www.lycos.com • Microsoft http://www.msn.com • Altavista http://www.altavista.com

  5. Three Principles of Searching the Web • Search Engines (key words) • Subject Directories • Natural Language Search pages

  6. Using Search Engines (by key word) • Refine your search by using specific key words e.g. Sydney Opera House • Boolean Operators AND (+), OR, NOT (-) • Punctuation e.g. “biography of Marilyn Monroe”

  7. Subject Directories • Search directories are categorised with information classified by topic and subject. • Good for searching broad subject areas. • Category headings sometimes as useful as actual hits. • Examples: www.yahoo.com www.excite.com

  8. Meta-search Engines • These simultaneously search multiple search engines. They are also referred to as parallel search engines, multi-threaded search engines, or mega search engines. • These are useful when: • you have an obscure topic • you are not having luck finding anything when you search • your search is not complex • you want to retrieve a relatively small number of relevant results • Examples: Dogpile http://www.dogpile.com/index.gsp Metacrawler http://www.metacrawler.com/index.html

  9. Natural Language Engines • This type of search engine encourages you to ask properly phrased questions. e.g. “How much does a Toshiba laptop cost?” •Useful for people without much search experience •Tries to clarify your query with ‘question and answer’ interaction • Performs a meta search and returns results in friendly format • Example: Ask Jeeves http://www.askjeeves.com

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