Searching the Net This project has been made possible by a grant from the U. S. Institute of Museum and Library Services.
Objectives <ul><li>Learn about how searching and search engines work </li></ul><ul><li>Talk about the various search engin...
What is a search engine? A Tool!
Web Crawler <ul><li>Use web crawler programs to index sites in the web </li></ul><ul><li>Times when Crawlers are impractic...
Deep Web <ul><li>Exists below the surface web </li></ul><ul><ul><li>Contains the majority of the internet’s content </li><...
 
Some of the Search Engines Available <ul><li>About.com  </li></ul><ul><li>AltaVista </li></ul><ul><li>AlltheWeb </li></ul>...
Metasearch engines <ul><li>Sends your request to several search engines at once </li></ul><ul><ul><li>Dogpile </li></ul></...
Boolean Searching <ul><li>Uses operators to narrow search results </li></ul><ul><ul><li>AND (+) </li></ul></ul><ul><ul><li...
<ul><li>Examples of good Search Strings </li></ul><ul><li>Munchkin Cats </li></ul><ul><li>Claddagh Rings </li></ul><ul><li...
<ul><li>Thank you for coming  </li></ul><ul><li>Feel free to repeat this class or sign up for other classes at the circula...
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Searching The Net

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Can't find what you are looking for on the internet? This class is for you! We will be covering searching techniques and discussing various search engines and how they work. Also we will talk about how best to phrase your search strings to get better results.

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  • Searching The Net

    1. 1. Searching the Net This project has been made possible by a grant from the U. S. Institute of Museum and Library Services.
    2. 2. Objectives <ul><li>Learn about how searching and search engines work </li></ul><ul><li>Talk about the various search engines </li></ul><ul><li>Discuss Boolean searching </li></ul><ul><li>Learn about phrasing your search string </li></ul>
    3. 3. What is a search engine? A Tool!
    4. 4. Web Crawler <ul><li>Use web crawler programs to index sites in the web </li></ul><ul><li>Times when Crawlers are impractical </li></ul><ul><ul><li>large volume </li></ul></ul><ul><ul><li>fast rate of change </li></ul></ul><ul><ul><li>dynamic page generation </li></ul></ul><ul><li>NO search engine indexes more than 16% of the web </li></ul>
    5. 5. Deep Web <ul><li>Exists below the surface web </li></ul><ul><ul><li>Contains the majority of the internet’s content </li></ul></ul><ul><ul><li>Here because of: </li></ul></ul><ul><ul><ul><li>Dynamic page generation </li></ul></ul></ul><ul><ul><ul><li>Fast rate of change </li></ul></ul></ul><ul><ul><ul><li>NOT indexed by many search Engines </li></ul></ul></ul><ul><li>Complete Planet </li></ul><ul><li>Lycos </li></ul>
    6. 7. Some of the Search Engines Available <ul><li>About.com </li></ul><ul><li>AltaVista </li></ul><ul><li>AlltheWeb </li></ul><ul><li>Ask.com </li></ul><ul><li>Google </li></ul><ul><li>Live Search </li></ul><ul><li>Snap </li></ul><ul><li>Yahoo! </li></ul>
    7. 8. Metasearch engines <ul><li>Sends your request to several search engines at once </li></ul><ul><ul><li>Dogpile </li></ul></ul><ul><ul><li>HotBot </li></ul></ul><ul><ul><li>Excite </li></ul></ul><ul><ul><li>KartOO </li></ul></ul><ul><ul><li>Mamma </li></ul></ul><ul><ul><li>WebCrawler </li></ul></ul>
    8. 9. Boolean Searching <ul><li>Uses operators to narrow search results </li></ul><ul><ul><li>AND (+) </li></ul></ul><ul><ul><li>OR (usually implied) </li></ul></ul><ul><ul><li>NOT (-) </li></ul></ul><ul><li>You can also use quotation marks to force certain phrases (ex. “population of Ozark Missouri”) </li></ul>
    9. 10. <ul><li>Examples of good Search Strings </li></ul><ul><li>Munchkin Cats </li></ul><ul><li>Claddagh Rings </li></ul><ul><li>Dragons </li></ul><ul><li>Rhinoceros Beetles </li></ul><ul><li>Mark Twain </li></ul><ul><li>Fly Fishing </li></ul><ul><li>Haley’s Comet </li></ul><ul><li>Examples of not so good Search Strings </li></ul><ul><li>How do I tie a hand-made halter </li></ul><ul><li>When is the best time to plant tomatoes </li></ul><ul><li>I need to know what the population of brazil is </li></ul><ul><li>How deep is the grand canyon </li></ul>Search Strings
    10. 11. <ul><li>Thank you for coming </li></ul><ul><li>Feel free to repeat this class or sign up for other classes at the circulation desk </li></ul>Questions ?
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