Search facilities. When comes to these 2 words, all I can think of is Google. Lecturers always ask me to "Google" when I ask them questions on my projects. All along, I search everything using Google and I thought Google is powerful enough for me. After today's lesson, I realize that there are more than just Google for search facilities.
What are different kind of search facilities?
Search engine - A search engine searches documents for specified keywords and returns a list of the documents where the keywords were found. Example (http://www.google.com/)
Meta search engine - A search engine that queries other search engines and then combines the results that are received from all. Example (http://www.monstercrawler.com/)
Subject directory - Subject directory allow you to browse Internet resources by different subject categories. Example (http://www.dir.yahoo.com/)
Invisible web - Invisible web refers to either web pages that cannot be indexed by a typical search engine or Web pages that a search engine purposely does not index, rendering the data "invisible" to the general user. Example (http://spark.tp.edu.sg/)
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