evaluating internet sites with info on how search engines work
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Evaluating Internet SitesSchool Name
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Where do you go to do research?
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Research Project
• You have been asked to research Martin Luther Martin Luther KingKing and type his name in Google – one of the first results is:
www.martinlutherking.org
• Is it a good source?
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How do search engines work?
From: http://computer.howstuffworks.com/search-engine1.htm
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How much for that Keyword?
• Video - Bidding on keywords
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Buying Keywords
• How much does a keyword cost?
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Paid resultsPaid results
Computer Computer Generated Generated Results – Results – based on based on keywords keywords and and popularity popularity (Pagerank)(Pagerank)
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Evaluating a website
Check for• Authority
• Objectivity/Bias
• Content and Accuracy
• Currency
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Check for Authority
• Who is the author of the site?• What is the authority or
expertise of the individual or group?• What else comes up when you
type the author’s name into a search engine?
• Does the source have a political or business agenda?
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Objectivity/Bias• Check for any indication of bias• Look at the domain address:
.edu educational site ~ personal web page
.gov government site
.uk British site
.org organization or advocacy group
.ca Canadian site
.com commercial site
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Objectivity/Bias
• What is the purpose of the site?• Does the source have a political or
business agenda?
• Is there an organization sponsoring the site?• sponsored by a political, business or
advocacy group? If so, what can you find out about that group?
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Objectivity/Bias
• Who is the intended audience?
• Is the information free from advertising?
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Content and Accuracy
• Is the information well researched and useful for you?
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Content and Accuracy
• Can the information be verified using another source?
• Is there documentation to indicate the sources of the information• Does the site provide a list of sources or
a Works Cited page?• Can you locate any of the source
material? How reliable is this material?
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Content and Accuracy
• Have you heard about the dangers of Dihydrogen Monoxide?
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Content and Accuracy
• Links• Are there links to other
credible sites with additional information?
• Does the site provide a link for emailing the author or webmaster?
• Did you reach this site through a reputable link?
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Research
• You found this site on famous explorers for your history project
• Is it a good source?
www.allaboutexplorers.com
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Research
• You found this site for your science project
• Is it a good source?
www.malepregnancy.com
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Currency• Does the site clearly
state a date of creation or a date for the most recent update?
• Does the information cover recent changes or advances in the field or topic you are researching?
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SummaryAny website you use must be
evaluated- check for:• Authority• Objectivity/Bias• Content and Accuracy• Currency
Use authoritative sources (example – online encyclopedias and databases) whenever possible)
Some examples of authoritative Some examples of authoritative sites…sites…