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Search Engines
Search
engines collect information about web pages and allow users
to search through that data. Each search engine looks for different
information and organizes results differently, so one site may
find what another might miss. As a result, it is worthwhile
learning the tricks of your favorite search engines. Be ready
to use more than one if you don't like the results you are getting.
Below there are a few sites that we have found useful.
All
The Web -
www.alltheweb.com (Help
- Review)
What's
Good: Very fast and comprehensive. Allows for a great deal
of customized searching.
What's Not: Does not allow for more complicated searches (ex.
Boolean operators).
Cool Feature: If you want to search for media (Video, music,
etc), there are
separate searches to make it easy.
- www.altavista.com (Help
- Review)
What's Good: Offers
a wide and powerful array of search methods in its Advanced
Search. Has one of the largest databases.
What's Not: Though AltaVista is supposed to be case insensitive,
sometimes it is and sometimes it's not, meaning that results
can be inconsistent.
Cool Feature: The image search (under "Search Tools").
Need an image? Use the Image Search to find hundreds (or thousands)
of images. You can limit the search results to photographs,
graphics, color or black and white. By right clicking (for PCs)
or double clicking (for Macs), you can save any image to your
hard drive or disk.
What's Good: Google
is one of the biggest search engines, and, due to their method
of measuring the use and popularity of sites, one of the best
at finding just what you are looking for.
What's Not: Search results often contain redundant hits,
making their total number of hits not quite accurate.
Cool Feature: You can limit your search to look for your
search terms on a single domain (ex. site:www.nwic.edu) or, alternatively,
you can exclude a domain (ex. -site:www.nwic.edu) to hone
your search. Another interesting search allows you to find out
how many pages are linked to a particular page (ex. links:www.nwic.edu).
- www.northernlight.com (Help
- Review)
What's
Good: If you're browsing, there are a lot of extra links here
-- subjects of current interest, news stories -- it aims to be
a "town commons" kind of place on the web.
What's Not: The home page is busy and distracting.
Cool Feature: GeoSearch, which lets you look for things
a specified distance
from a place (your home, work) is neat, but a little flaky. Use
phrase searching (Put the phrase in "quotes, like this")
to get more precise results. A search for "Japanese food"
3 miles from my home still got hits for programming languages,
but there were some good links, too.
Metasearch Engines -
Metasearch
engines take your search terms and run them on many search engines.
This allows you to avoid the limitations of any one search engine
by casting a wide net. One drawback is that the results can
be somewhat random and unhelpful.
- www.dogpile.com (Help
- Review)
What's
Good: Because it searches such a wide array of search engines
you can find obscure information very quickly.
What's Not: It's hard to tell how Dogpile will present
your search to each search engine.
Cool Feature:Try entering an imaginary or unusual word
and see which search engines find nothing and which find you places
to buy stuff. You can learn a lot about how individual search
engines process a search.
Directories
-
Directories
provide links to selected and categorized sites. Since people
are choosing the sites and arranging them within a hierarchy,
the sites tend to be of good quality. The downside is that they
often have less range than search engines, since the amount
of attention needed places a limit on the number of in the database.
What's
Good: The topic areas are covered by enthusiasts, Guides,
who collect a range of links with useful annotations. Very good
place to start a search on an unfamiliar subject.
What's Not: If no one has put together a site subject you
are interested in About will have little to offer.
Cool Feature: They have subject libraries that display
their 700 Guide pages with brief annoatations. Makes for fun browsing.
What's
Good: There is an amazing amount of stuff here. DMOZ is one
of the largest directories.
What's Not: It's big and messy. It's sometimes hard to find
what you want. The categories are only as good as the people who
contribute to them, so quality can vary widely.
Cool Feature: Anyone can add links and help build the site.
When it works, it's the DIY ("Do It Yourself") ethic of
the internet at its finest.
What's
Good: Good coverage and indexing of popular topics like games,
movies, and music. Yahoo has professional searchers out looking
for the best stuff on the web, so their links are usually of high
quality.
What's Not: Narrow coverage, especially if you don't want
the kinds of things listed in "good stuff." More useful
for entertainment than education.
Cool Feature: A lot of handy extras, like a map program (get
directions) and an email/address locator (find a friend who's moved
away). They also offer free email.
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