Finding
Information on the Net

Learning
to find information quickly on the Internet does take a bit of skill and
practice. There are many search engines, and many directory services.
The
trick is learning which ones are best suited to what you are looking for.
There is a comprehensive list of Search Engines and Links on the LiSP
Search Page.
Search
Engines
These
use a "brute force" method of searching. A Search engine is simply a
computer that is constantly searching the Internet, following link to
link, adding
pages, and keywords to its' database.
When
you use a search engine, you type in several keywords, and the engine
will scan its' database, and retrieve all pages that contain those words.
While
this is usually very fast, it does have a downside: the number of results.
Often, if you use a common word, it will be in the millions.
Most
Search Engines have a technique for using them effectively, to narrow
down, or more accurately find pages.
Eg:
in AltaVista, use a + (plus) in front of each
word to force it to be included. Use a - (minus) infront of a word to
exclude it from a search. +red +car +holden -ford would find
all pages containing the words "red", "car", "holden" but NOT the word
"ford"
Directories
These
operate differently, in that the require a bit more time and effort
to dig through the categories they offer. A good example is Yahoo!
Although
you can still type in a keyword, you can often find a much more specific
listing of websites related to the topic you are searching for. eg:
Sports - Regional - Australia - Australian Rules - Clubs
The
disadvantage of Directory style listings, is that they only contain
the TITLE and ADDRESS (and often just a one line sentence describing
the site).
Sites
like Yahoo don't keep a database of every single word within every webpage
on the Internet, like Altavista and Anzwers do.
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