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This is the "Page 5" page of the "USD Information Literacy Lessons" guide.
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USD Information Literacy Lessons  

The broad focus of these lessons is understanding sources of information, including examples that can help you learn how to access information sources at USD. Each lesson is dedicated to a specific element of information competency.
Last Updated: Jan 4, 2017 URL: http://libguides.usd.edu/infolit Print Guide RSS Updates

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Overview of Online Materials: The Resources

Here are some statistics to keep in mind about information on the Web:

  • More than 7.5 million new pages go onto the Web every day.
  • The Web contains an estimated 2.5 billion documents.
  • The average life span of a URL (i.e. Web address) is 44 days.*
  • There are more than 2,500 search engines/directories on the Internet.*
  • The largest search engine (AltaVista) has access to between 14%-16% of the URLs at any one time.
  • The largest domain is .com, comprising 35.3% of all Internet hosts.
  • Not everything in print is available online, especially if it was created before 1990.
    *Fowles, Charlotte.  "Evaluating Web Resources."  Vermillion, SD: I.D. Weeks Library, 2000.

 

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