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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.

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Presentation on theme: "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."— Presentation transcript:

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 can you suggest what the full URL might be? How can awareness of the URL structure be useful... When evaluating websites? When dealing with broken links?

4 Examples of Search Engines Google Northern Light Lycos Microsoft Altavista

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:

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 Metacrawler

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


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