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Internet Research

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  • Transcript

    • 1. Internet Search Strategy
    • 2. Advantages
      • The ability to learn faster than your competitor may be the only sustainable competitive advantage.
      • Peter Senge, The Fifth Discipline
    • 3. Outline
      • Background
      • Browsers
      • Search Engine
      • Directory
      • Blog
      • Web 2.0
      • Internet Politics
    • 4. Background
    • 5. History
    • 6. Definition of Net The Internet is the publicly accessible worldwide system of interconnected computer networks that transmit data by packet switching using a standardized Internet Protocol (IP). It is made up of thousands of smaller commercial, academic, domestic and government networks. It carries various information and services, such as electronic mail , online chat , and the interlinked web pages and other documents of the World Wide Web .
    • 7. How big is the web?
      • 56 billion static web pages are publicly-available on the World Wide Web.
      • Another estimated 6 billion static pages are available within private intranet sites
      • 200+ billion database-driven pages are available as dynamic database reports ("invisible web" pages)
      • Google.com indexes 9.75 billion web pages.
    • 8. WWW domination
    • 9. Deep Web
      • The invisible web, , a vast repository of information that search engines don't have access to, such as databases
      • Private networks, called intranets, that are not actually hooked up to the Web
      • Forms , like ColdFusion or CGI
      • Password-protected sites , like a university library
      • Sites that intentionally, for various reasons, keep their information from being indexed by search engine spiders
    • 10. Today
      • 200 Billion
      • Only 50 Billion is static web
      • Geogle only indexed 10%
      • Daily Web Space increase 100,000 websites
    • 11. Key Players Larry Page Co-Founder & President, Products Sergey Brin Co-Founder & President, Technology
    • 12.  
    • 13. Sir "Tim" John Berners-Lee
      • the inventor of the World Wide Web and director of the World Wide Web Consortium
    • 14. Search Strategy
    • 15. Search Strategy
      • Choose appropriate key words
      • b. Select right tools
      • c. Evaluate Information
    • 16.  
    • 17. Sharing
      • Interesting sites?
      • Your frustration?
      • Questions ?
    • 18. Your needs?
      • 1. What information you want to
      • have right now?
      • A.________________________
      • B. _______________________
      • C. _______________________
    • 19. Tools
      • Search engine
      • Meta Search
      • Specialized search engine
      • Directory
      • Specialized Directory – academy, alexa
      • Blog
      • RSS
      • Torrent
    • 20. Tools for Multimedia
      • Sound - Podcast
      • TV – Online TV
      • Photo – flickr
      • Invisible Web
    • 21. Browser
    • 22. Definition
      • A web browser is a software application , technically a type of HTTP client , that enables a user to display and interact with HTML documents hosted by web servers or held in a file system .
    • 23. HTML & HTTP
      • In computing, HyperText Markup Language ( HTML ) is a markup language designed for the creation of web pages with hypertext and other information to be displayed in a web browser . HTML is used to structure information — denoting certain text as headings, paragraphs, lists and so on
    • 24. Browser - functions
      • Mozilla Firefox – tab, extensions
      • Internet explorer – high security
      • Opera – sessions, ligh
    • 25.  
    • 26.  
    • 27.  
    • 28. Browsers
      • Internet Explorer (decoder)
      • Bookmark/Favorite
      • Home Page (Google, Yahoo)
      • Back Forward
      • Refresh (7 seconds)
      • History
      • Text size
      • Encoding
    • 29. Search Engine
    • 30. Definition Definition: A search engine is a searchable database of Internet files collected by a computer program (called a wanderer, crawler, robot, worm, spider).
    • 31. search engine Spider: Program that traverses the Web from link to link, identifying and reading pages Index: Database containing a copy of each Web page gathered by the spider Search and retrieval mechanism: Technology that enables users to query the index and that returns results in a schematic order
    • 32.
      • Single
      • Google.com
      • Vivisimo.com
      • Meta
      • All the Web
      • Dogpile
      Internet search engines can be the most useful--or useless--tools on the Internet Search Engines
    • 33.  
    • 34.  
    • 35.  
    • 36.  
    • 37.  
    • 38.  
    • 39.  
    • 40. Boolean Search Add +ABC Minus -ABC Default DEF OR ABC Exact phrase “ABC” Wild card ABC* Synonym ABC~
    • 41. Boolean                                                       OR 33702660 NOT 81497 AND 1677
    • 42. effective habits:
        • Study Search Engine Help Files
        • Use The "Three Strikes" Rule
        • Don't Play Favorites
        • Use Specialized Search Sites
        • Keep your book mark well classified
    • 43. TEST
      • Use google to find the three items you have listed down
    • 44. Directory
    • 45.
      • pick by human
      • hierarchy
      • small portion of cyberspace
      • low noise
      Characters
    • 46.  
    • 47. General Directory
      • Yahoo - largest collection of topical collections
      • Google Web Directory –
      • using the Google link ranking technology; Google search results are also included with directory results
      • Open Directory – volunteers to pick the web pages
    • 48.  
    • 49.  
    • 50. Specialized Dir
      • About - large collection of topical collections gathered subject specialists
      • Alexa – List down the highly ranked websites
      • 100times – free education sites for business studies
    • 51.  
    • 52.  
    • 53.  
    • 54.
      • INFOMINE - large collection of scholarly Internet resources collectively maintained by several libraries, including those from the University of California
      • The Internet Public Library - large, selective collection from the University of Michigan
      • The WWW Virtual Library - highly respected guides to many disciplines sponsored by the W3 Consortium
    • 55.  
    • 56. TEST
      • Find directories that related to your profession
    • 57.  
    • 58. Blog
    • 59.  
    • 60.  
    • 61.  
    • 62.  
    • 63. Blog
      • http://www.tehnorati.com
      • http://www.bloglines.com
      • http://www.blogger.com
      • http://blog.iht.com
      • http://www.jeffooi.com
    • 64. Mailing List/Groups Info Exchange
    • 65.  
    • 66.  
    • 67. Multimedia
    • 68. Web 2.0
      • Encyclopedia
      • http://www.wikipedia.org
      • Photo
      • http://www.flickr.com
      • RSS
      • http://www.feedstar.com
    • 69. TV
      • Power Point Slide show Online
      • http://www.slide.com
      • Online TV
      • http://wwitv.com
      • http://twit.tv
      • http://websearch.about.com/od/imagesearch/a/freeonlineTV.htm
    • 70. Magazine & Newsletter
    • 71.  
    • 72.  
    • 73. Podcast Sound
    • 74.  
    • 75. Podcast
      • Podcasting is a term coined in 2004 when the use of RSS syndication technologies became popular for distributing audio content for listening on mobile devices and personal computer
    • 76. RSS News Aggregator
    • 77.  
    • 78. Mailing List Connect
    • 79.  
    • 80. Pictorial Explanation
    • 81. Web Based Mailing List
      • Google Groups
      • Yahoo Groups
      • MSN Groups
      • LIST : SIPI, Dale Carnegie , TRDEV
    • 82. Benefits
      • Ask questions
      • Sense of belonging
      • International exposure
      • Contribution
      • Networking
    • 83. Dangers
      • Lurk first
      • Beware of the audience
      • Jokes
      • Use emoticon
    • 84. Information Evaluation
    • 85. Web Evaluation Techniques Before you click to view the page...
      • Look at the URL - personal page or site ? ~ or % or users or members
      • Domain name appropriate for the content ? edu, com, org, net, gov, ca.us, uk, etc.
      • Published by an entity that makes sense ?
          • News from its source?
              • www. nytimes .com
          • Advice from valid agency?
              • www. nih .gov/
              • www.nlm. nih .gov/
              • www.nimh. nih .gov/
    • 86. Web Evaluation Techniques Scan the perimeter of the page
      • Can you tell who wrote it ?
          • name of page author
          • organization, institution, agency you recognize
          • e-mail contact by itself not enough
      • 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 - usually at bottom
      • If no links or other clues...
          • truncate back the URL
        • http://hs.houstonisd.org/hspva/academic/Science/Thinkquest/gail/text/ethics.html
    • 87. Web Evaluation Techniques Indicators of quality
      • Sources documented
          • links, footnotes, etc.
            • As detailed as you expect in print publications ?
          • do the links work ?
      • Information retyped or forged
          • why not a link to published version instead ?
      • Links to other resources
          • biased, slanted ?
    • 88. Web Evaluation Techniques What Do Others Say ?
      • Search the URL in alexa.com
        • Who links to the site? Who owns the domain?
        • Type or paste the URL into the basic search box
        • Traffic for top 100,000 sites
      • See what links are in Google’s Similar pages
      • Look up the page author in Google
    • 89. Web Evaluation Techniques STEP BACK & ASK: Does it all add up ?
      • Why was the page put on the Web ?
          • inform with facts and data?
          • explain, persuade?
          • sell, entice?
          • share, disclose?
          • as a parody or satire?
      • Is it appropriate for your purpose?
    • 90. Try evaluating some sites...
      • Search a controversial topic in Google :
        • "nuclear armageddon"
        • prions danger
        • “ stem cells” abortion
      • Scan the first two pages of results
      • Visit one or two sites
        • try to evaluate their quality and reliability
    • 91. Internet Politics
    • 92. Internet Politics
      • Virus
      • Freedom of speech Porno graphy
      • Company policies
      • Copy right
    • 93. Internet Politics
      • Virus
      • data loss due to viruses is still less than 10%
      • 2 hours to clear up, a major infection will probably
      • take 5 days
      What is the consequences?
    • 94. Internet Politics
      • Virus
      One of the first major attacks in the United States occurred in 1988 with a virus created by a Cornell University graduate student. It jammed more than 6,000 computers across the country, shutting down some networks on what was then a much smaller national computer network.
    • 95. Internet Politics
      • Antivirus Rules For The Users
      1 . Never accept disks , programs or data files without checking them first 2. Never use software , demo's or other software with doubtful origins 3 . Always scan any program or document download onto your machine before you open or read it, this includes attachments received via e-mail 4. If you lend a disk to anyone, check it when you get it back. BEFORE you use it again 5. Keep your Antivirus software up to date
    • 96. Internet Politics
      • Freedom of speech
      • Abide to non-disclosure agreement.
      • In discussion group, lurk before you participant.
      • Do not use four letter words
      • Use emoticon for international communication
    • 97. Internet Politics
      • Pornography
      • It’s a big NO NO
      • Why it is not allowed?
      • If allowed, what would be the negative consequences?
      • If accidental, leave straight immediately
    • 98. Internet Politics
      • Company policies
      • Internet Users Policy
      • (IUP)
      • Previous experience
    • 99. Internet Politics
      • Copy right
      • Three types of software:
        • public domain, freeware and shareware
      • Give credit to authors
        • electronics, verbal or written forms
      • Check virus
      • Consult IT or HR if not clear