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John Kupersmith jkupersm [at] library.berkeley.edu A “Know Your Library” Workshop

Research-quality Web Searching. G o o g l e and Beyond. John Kupersmith jkupersm [at] library.berkeley.edu A “Know Your Library” Workshop Teaching Library, University of California, Berkeley Fall 2008. COURSE PAGES: http://www.lib.berkeley.edu/find/types/websites.html

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John Kupersmith jkupersm [at] library.berkeley.edu A “Know Your Library” Workshop

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  1. Research-quality Web Searching Google and Beyond John Kupersmith jkupersm [at] library.berkeley.edu A “Know Your Library” Workshop Teaching Library, University of California, Berkeley Fall 2008 COURSE PAGES: http://www.lib.berkeley.edu/find/types/websites.html http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/FindInfo.html

  2. How Google works • BEFORE you search:“Crawls” pages on the public webCopies text & images, builds database • WHEN you search:Automatically ranks pages in your results • Word occurrence and location on page • Popularity - a link to a page is a vote for it • ~ 200 factors in all!

  3. Searching Google • Think “full text” = be specificvs. history war of 1812 economic causes • Use academic & professional termsdomestic architecture vs. housesgenome societygets International Mammalian Genome Societyalso try combinations withassociation, research center, institute, directory, database

  4. Specify exact phrases“tom bates”“what you're looking for is already inside you” • Exclude or require a wordproliferation -nuclearobama +hussein

  5. Limit your search to … • Web page titleintitle:hybrid allintitle:hybrid cars mileage • Website or domainsite:whitehouse.gov “global warming”site:edu “global warming”

  6. File typefiletype:ppt site:edu “global warming” • Definitionsdefine:pixeldefine:“due diligence”

  7. Google’s other databases

  8. Why go beyond Google? • Search more of the webYahoo! • Get more optionsExalead

  9. Take advantage of human selectivityLibrarians’ Internet IndexInfoMineGoogle Custom Search Engines (CSE)

  10. CRITICAL EVALUATIONWhy Evaluate What You Find on the Web? • Anyone can put up a web page • Many pages not updated • No quality control • most sites not “peer-reviewed” • less trustworthy than scholarly publications

  11. Before you click to view the page... • Look at theURL -personal page or site ? ~ or % orusers or members • Domain name appropriate for the content ? • Restricted: edu, gov, mil, a few country codes (ca) • Unrestricted:com, org, net, most country codes (us, uk) • Published by an entity that makes sense ? • News from its source? www.nytimes.com • Advice from valid agency? www.nih.gov/ www.nimh.nih.gov/

  12. Scan the perimeter of the page • Can you tell who wrote it ? • name of page author • organization, institution, agency you recognize • Credentials for the subject matter ? • Look for links to: “About us”“Philosophy”“Background” “Biography” • Is it recent or current enough ? • Look for “last updated” date

  13. Examine the content • Text • possibly forged ? • why not a link to published version ? • Sources • documented with links, footnotes, etc.? • do the links work ? • Evidence of bias • in text or sources ?

  14. Which blogs link to it? What do they say? • Try the URL in Google Blog Search • See what links are in Google’s “Similar pages” • Look up the page author in Google

  15. Wayback Machine • http://www.archive.org/index.php

  16. More Google • Google Squared • Other Google Labs

  17. Try it! Use the Website Evaluation sheet to find information on one of the following: • Search a controversial topic in Google • Addiction to electronic gadgets • Preventing Cyberbullying • Teen drivers more dangerous? • Video games and violence • Scan the first two pages of results • Visit two sites • evaluate their quality and reliability using the criteria

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