successful internet searching presentation


Published on

  • Be the first to comment

  • Be the first to like this

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

successful internet searching presentation

  1. 1.
  2. 2. Where<br />is<br />the<br />Money?<br />
  3. 3. INTERNET SEARCHing for smarties<br />“Seek and ye shall find”<br />
  4. 4. Ha haha<br />
  5. 5. GOALS OF THE SEMINAR<br />Understand the nature of the web.<br />Learn about the different types of search engines and how they function.<br />Discover which search engines are appropriate for your varying needs.<br />Learn how to evaluate websites.<br />Learn how to bookmark websites for later retrieval.<br />
  6. 6. Goals of the seminar (cont.)<br />Be able to understand and follow these directions:<br />“Begin with a phrase search, progress to using Boolean and proximity operators with field to top-level and geographic domain limiters, and end with link checking of a selected result. These link checks will then be further limited using the Boolean AND operator with a keyword/phrase and a top-level domain.”<br />
  7. 7. Search engines and the world-wide-web<br />
  8. 8. The Invisible web<br />What is the nature of the Invisible Web?<br />What can be found on the Invisible web?<br />Databases <br /><ul><li>(up to 90% of the invisible web is located in databases</li></ul>Forms to be completed<br />Current material<br />Password-protected material<br />Why is knowledge of the invisible web so important?<br />
  9. 9. Remember…<br />The information you need determines what search engines you will use.<br />
  10. 10. Remember…<br />When completeness is important,searching requires the use of several tools.<br />(Require your students to use at least three separate search tools when researching a topic)<br />
  11. 11. General-purpose search engines<br />
  12. 12. General-purpose search engines<br />Provides text-matched searching of its own crawler-built database of text-indexedWeb pages.<br />Search results are ranked according to internal relevance-ranking algorithms.<br />Provides searchable access to the text of millions of freely accessible Web pages.<br />Ex: google, yahoo, bing, gigablast, cuil<br />
  13. 13. General-purpose search engines<br />Why are general-purpose search engines so popular?<br />Ease-of-use<br />Convenient<br />Time-saving<br />Availability of full-text<br />
  14. 14. General-purpose search engines<br />Problems associated with using general-purpose search engines exclusively:<br />TMI (too much information)<br />Lots of irrelevant or inappropriate information <br />Many results may be of limited use<br />Advanced features are not used<br />Tendency to look only at first ten results<br />Access is preferred over quality<br />
  15. 15. Meta-search engines<br />
  16. 16. Meta-search engines<br />A search tool that does not have its own database.<br />Sends queries to several other search engines and then complies the results on a single screen or in multiple frames or windows.<br />Ex: clusty, dogpile, surfwax, copernic<br />
  17. 17. Meta-search engines<br />Benefits of meta-search engines:<br />Searches in many different search engines, and thus is not tied down to one database.<br />Enhance coverage and relevancy of the search.<br />Can provide more up-to-date results<br />Some meta-search engines eliminate duplicate records.<br />Some meta-search engines sort pages into topics.<br />
  18. 18. Database & directories search engine<br />
  19. 19. Database & directories search engine<br />A classified listing of Web sites, in which brief records for sites are placed within an appropriate hierarchical taxonomy.<br />Classification of sites is typically done by human editors, and the sites are searchable by category names, site titles, and brief site descriptions.<br />Ex: google scholar, ipl, dmoz, vlib, yahoo directory<br />
  20. 20. Database & directories search engine<br />Benefits of databases and directories<br />Search results are generally a lot more reliable because classification is done by human editors.<br />Easier to find more relevant information<br />Information found in databases may not be indexed by general-purpose (and meta-) search engines.<br />Hierarchical layout allows for targeted searching.<br />
  21. 21. In short…<br />DIG DEEPER<br />SEARCH FURTHER<br />DISCOVER MORE!<br />
  22. 22. So……………………….<br />Where<br />is<br />the<br />Money?<br />