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    Web Search Engines
   Google (

   Altheweb (

   Wisenut (

   Raging (

   AltaVista ( y (

   Excite (

   MSN (

   Infoseek (

   Lycos (

   Northernlight (

   Webcrawler (

   Direchit (

   Hotboot (

   Netscape (

   Overture (
Web search engines

   A web search engine is designed to search for information on the World Wide
    Web and FTP servers. The search results are generally presented in a list of
    results and are often called hits. The information may consist of web pages,
    images, information and other types of files. Some search engines also mine
    data available in databases or open directories. Unlike Web directories, which
    are maintained by human editors, search engines operate algorithmically or are
    a mixture of algorithmic and human input
How web search engines

   When a user enters a query into a search
    engine (typically by using key words), the
    engine examines its index and provides a
    listing of best-matching web pages
    according to its criteria, usually with a short
    summary containing the document's title and
    sometimes parts of the text. The index is
    built from the information stored with the
    data and the method by which the
    information is indexed.
 To enter a query into Google, just type in a few
 descriptive words and hit the 'enter' key (or click on
 the Google Search button) for a list of relevant web
 Since Google only returns web pages that contain all
 the words in your query, refining or narrowing your
 search is as simple as adding more words to the
 search terms you have already entered.
 Your new query will return a smaller subset of the
 pages Google found for your original "too-broad"

 For best results, it's important to choose your keywords wisely.
 Try the obvious first.
 If you're looking for information on Picasso, enter "Picasso"
  rather than "painters".

 Use words likely to appear on a site with the information you
  want. "Luxury hotel London" gets better results than "really nice
  places to spend the night in London".

 Make keywords as specific as possible. "Antique lead soldiers"
  gets more relevant results than "old metal toys".
Useful links teaching English










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Design a lesson plan based on an internet source.
 "Step up the
stairs or stare
at the steps.”
    Ralph Nichols
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