Download - Finding Information on the Internet
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Finding Information on the Internet
Irwansyah
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Why Search the Web?
A simple answer is that the Web is too large and unorganized to find much useful information.
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Alternative Methods for Finding Information• Typing in the web address of a known page (URL)• Search engines• Directories (or web catalogues)• Browsing
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Web ‘addresses’ or URLs
The most efficient method of finding information on the internet is through typing the web address or URL directly into the web browser.
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How do We Know the URL?
• A word of mouth recommendation• From advertisement or company
promotional literature• Simply making a good guess
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How Web Search Engine Work
Search engines use special automatic tools known as spiders, crawler or robots to index web pages of registered sites.
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What Search Engines Search
• Content• Tags
– Keyword– Description– Title– Heading– Links
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What Search Engines Ignore• Frames• Scripts• Java Applets and Plug-Ins• Server-Generated Pages• Forms• Images• Deeply Linked Pages• Reorganization and Broken Links
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Major Search Engines
• Google – http://www.google.com • Yahoo – http://search.yahoo.com • MSN – http://search.msn.com • AltaVista – http://www.altavista.com• Alltheweb – http://www.alltheweb.com
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Alternative Search Engines
• Vivísimo – http://www.vivisimo.com • Dogpile – http://www.dogpile.com • Ask.com or AskJeeves.com –
http://www.ask.com • SurfWax – http://www.surfwax.com• Ixquick – http://www.ixquick.com
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Mobile Search Engines
• http://mobile.google.com • http://mobile.yahoo.com/search • http://mobile.msn.com
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Searching with Google
• Think “full text”war of 1812 economic causes
• Specify exact phrases“tom bates”
• Exclude or include a wordproliferation –nuclearobama +hussein
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Searching with Google
• Web page titleintitle:hybrid
• Website or domainsite:whitehouse.gov
• File typefiletype:ppt site:edu “global warming”
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Nine Very Cool Google Tricks
1. Definitionsdefine:wireless LAN
2. Calculator2+2
3. Phonebookphonebook: ansonia veterinary center NY
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Nine Very Cool Google Tricks 4. Street Maps
9 Princeton St Boston MA 021285. Stock Quotes
stock quotes:MSFT 6. Patents, Tracking IDs, and Other Numeric Goodies
patent 5123123
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Nine Very Cool Google Tricks 7. Weather
weather bloomington, indiana 8. Q&A
Q&A:population of south korea 9. Movies
movie: holy grail
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Interpreting the Results
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When Not to Use Google
• Google doesn't cluster results• Google isn’t good enough to find a person's email
address• Google isn't the best place to find what an abbreviation
stands for• Some topic-specific directories are simply more fine-
tuned than Google's regular full-text search• When working on an in-depth research project (like a
college thesis), Google doesn't help you catalog multiple search results, or let you take notes on interesting sites.
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Web Catalogues or Directories
Massive online catalogs that are edited, sorted, and organized by humans
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Major Web Directories
• http://directory.google.com • http://dir.yahoo.com • http://dmoz.org
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Practical Tips for Managing Information
1. Using bookmarks2. Printing information3. Saving text for subsequent reading or
printing4. Saving an image or diagram
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