1. Boolean for Info Navigating the Net and Finding what you Want

2. URL: Internet Address Every URL has four required parts (more are optional) http://www.nasa.gov 1 2 3 41234 click on the numbers to view the definition when finished, click the arrow to advance

3. Navigating the Net Search Engines Metacrawlers use more than one search engine at the same timeMetacrawlers Click on the underlined word to view examples when finished, click on the arrow to advance

4. 1 http Each web page address begins with http:// which stands for Hyper Text Transfer Protocol. The http:// shows it is an Internet address.http://

5. 2 www Most, but not all, addresses contain www, which stands for World Wide Web

6. 3 nasa The next part of this address is nasa, the name of the computer of “server” to which you connect. Every server on the Internet has an assigned label called the “domain name.” nasa shows that this computer belongs to NASA.

7. 4 gov Finally, another required part of the domain name, called a “domain designator,” tells what kind of group owns the server. org = organization gov = government agency k12.___.us = public schools mil = military agency com = business edu = university net = network aus = Australia

8. Search Engines All the Web www.alltheweb.comwww.alltheweb.com Alta Vista www.altavista.comwww.altavista.com Ask Jeeves www.askjeeves.comwww.askjeeves.com Teoma www.teoma.comwww.teoma.com Lycos www.lycos.comwww.lycos.com Yahoo www.yahoo.comwww.yahoo.com

9. Metacrawlers Dog Pile – www.dogpile.comwww.dogpile.com Mamma – www.mamma.com/www.mamma.com/ Metacrawler – www.metacrawler.com www.metacrawler.com Search.com – www.search.com

10. Boolean logic operators Each search engine site has its own “syntax” for joining keywords using Boolean logic operators (and, or, not). Click here for more on BooleanBoolean

11. 1. To find information on the planet Saturn; not the car company, type Saturn –cars 2.To find information about the history of paper, type “history of paper” 3. To find a lab lesson on Newton’s Laws for junior high, type “Newton’s Laws of Motion” + lab + junior high

12. Evaluating Internet Info Web-evaluations Reverse search