WORLD WIDE WEB
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SEARCH VEHICLE TYPE |
WHO Selects Web Pages? |
WHAT Is searched |
WHERE does The Engine search? |
RESULTS What results from your search? |
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DIRECTORIES |
People |
Hierarchical List |
Searches its own server’s list |
Directory headings & web page links |
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VIRTUAL LIBRARIES |
People |
The librarian’s Subject List (Hierarchical) |
Searches its own server’s list |
Subject matter headings & web links |
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SEARCH ENGINES |
Spider (Robot) |
Tags <meta> <title> URL <body> <Ahref=. ><A> <IMG SRC=..> |
Searches list of pages and tags returned to the server by “spider” program. |
“Unorganized”Web Page links (Note: most search engines now sell Top 20 slots.) |
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META SEARCH ENGINE |
Search algorithms (math programs) |
Searches many (meta) other search engines |
All over the web |
Web pages found on various other search engines. |
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SPECIALIZED DIRECTORIES |
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INTELLIGENT AGENTS |
Computer software programs |
Price; Product Availability; Travel; Provide responses to user commands |
Within intelligent agent program. |
Will send you emails when your criteria are met – e.g., ticket price, product avails. |