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Searching the Net

Searching the Net. Using Internet search engines and logical operators to find what you’re looking for on the web. What is the Internet?. The Internet is the transport vehicle for the information stored in files or documents on another computer.

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Searching the Net

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  1. Searching the Net Using Internet search engines and logical operators to find what you’re looking for on the web

  2. What is the Internet? • The Internet is the transport vehicle for the information stored in files or documents on another computer.

  3. Corporations, hospitals, universities, museums, government agencies, special interest groups, libraries, individuals, research organizations, and public service groups are among the big players on the net. But remember: there is no check for accuracy, fairness, honesty, currency, or decency. Anyone who knows how to make a web page can place anything on the net. It’s up to the user to be wary. What kind of stuff is on the net?

  4. Search engines are cool. • A search engine is a tool for finding information on the Internet. There are lots of search engines, but they all work basically the same way.

  5. Take a look at this animation http://www.learnthenet.com/english/animate/search.html

  6. Now we’re ready to learn about Boolean logic.

  7. AND • If you want web sites or database articles on ‘how crime and poverty are related,’ then you want only sites that contain both of those keywords. • Search for: poverty AND crime

  8. OR • If you want web sites or database articles on ‘college,’ you might also want to include ‘university,’ so you want sites that contain either of these keywords. • Search for: college OR university

  9. NOT • If you want web sites or database articles only on ‘cats’ but nothing on ‘dogs,’ then you want to make sure ‘dogs’ doesn’t appear as a keyword. • Search for: cats NOT dogs

  10. REMEMBER • AND = requires all terms to appear in a record • OR = retrieves records with either term • NOT = excludes terms

  11. Search engines • There are dozens, maybe hundreds, of search engines. The next frame shows some of the best and what they are best for.

  12. If you want to . . . Browse a broad topic Yahoo www.yahoo.com/ Lycos www.lycos.com/ Google www.google.com Search for a narrow topic AltaVista www.altavista.com/ Excite www.excite.com/ Go (Infoseek) http://www.go.com/ Search largest amount of Internet (meta-search engines) Metacrawler http://www.metacrawler.com/ Ask Jeeves www.askjeeves.com All the Web (Fast Search) http://www.alltheweb.com/ Search only reviewed sites A Well-Lighted Place for Kids http://www.computerlearning.org/WellLite.htm Argus Clearninghouse www.clearinghouse.net/ About.com/Mining Co. http://www.about.com/ Browse educational topics and resources Schrock’s Guide http://school.discovery.com/schrockguide/ Blue Web’n http://www.kn.pacbell.com/wired/bluewebn/ Connections + http://www.mcrel.org/resources/links/hotlinks.asp Search specific types of databases Switchboard www.switchboard.com/ Gov Spot http://www.govspot.com/ Research-It! www.itools.com/research-it/ Search for educational materials and reviews K-12 Weblinks Database www.itrc.ucf.edu/k12db/ EvaluTech www.evalutech.sreb.org/ FREE www.ed.gov/free/

  13. Search engine shortcuts • Most search engines have matured past the original “and, or, not” operators. They now use shortcuts that have the same meaning but are quicker to type. • The next frame shows each engine and what it uses for shortcuts.

  14. Google www.google.com Alta Vista (Simple Search) www.altavista.com Infoseek www.go.com Lycos www.lycos.com Yahoo www.yahoo.com And (Automatically includes "and" between terms) +cats +pets +cats +pets +cats +pets +cats +pets Or (do a separate search) cats kittens cats, kittens Use Advanced Search Use Advanced Search Not cats –wild +cats –wild +cats –wild +cats –wild +cats –wild Exact phrase “pet care” “pet care” “pet care” “pet care” “pet care” N/A Use Advanced Search N/A Use Advanced Search N/A Complex Searching

  15. When in Doubt • Every search engine worth its salt has a “tips” page that tells you how to use it. “Tips” will usually be located by clicking on the logo on the engine’s home page. • Once you become completely familiar with the basics, click on “advanced search” to learn how to fine tune your searches.

  16. Putting it all together • Go to this on-line tutorial and watch AltaVista help Rascal find a therapist. • http://www.learnthenet.com/english/html/78tutorial.htm

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