As regular readers of this column know, I am a big fan of Google. There are
times, however, when such a general-purpose search tool will overwhelm you with
results without giving you precisely what you need. Fortunately, the Web offers
an array of resources-many of them free, and some paid-that give more
precise results to specialized searches.
Say you wanted to see what the world's news media were saying about events
at Iraq's Abu Ghraib prison. When I queried Google on "abu ghraib,"
I got 175,000 hits. Adding "+media" to the search still gave 92,000
results, most of them Web log musings about media coverage.
A search restricted to print, broadcast, and online news outlets is more
productive. Two effective ways to do this are Google's news-only site (news.google.com)
and Daypop (www.daypop.com). Google has broader coverage but still came up with
15,000 hits; Daypop deftly narrowed it to 591.
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Many other specialized information tools are more databases than search
engines. If you are looking for explanations for how things from abiogenesis to
Zambonis work, howstuffworks.com may be just what you need. It's a sort of
online encyclopedia on what makes the world around us tick, although it is
strongest in fields relating to computer technology. You enter a search term,
and it comes back with a list of relevant articles.
Wikipedia is one of the more remarkable projects on the Web. The online
encyclopedia (www.wikipedia.com) is the work of 6,000-odd volunteers covering a
huge range of subjects, even though it does better on science and technology
than on arts and culture. Not surprisingly, the articles are of uneven depth and
quality. If you find an error, you are welcome to suggest a correction. And if
you find a topic that isn't covered, you are welcome to create a new article.
(An editorial group decides which corrections and contributions merit posting.)
By contrast, print encyclopedias have mostly gone the way of the dinosaur,
but those compendiums of knowledge survive as online products. Encyclopaedia
Britannica (www.eb.com) is available as an online subscription service for $60 a
year. The more kid-friendly World Book hangs on in print, but you can also
subscribe to www.worldbookonline.com for $50 a year. One advantage of such
traditional reference works is that, unlike so much content on the Web, their
facts are well-vetted.
GuruNet, a $30 subscription service, is another route to authoritative
information, providing quick access to a variety of standard reference works,
from the American Heritage Dictionary to Wolfram Research's online science and
math encyclopedias. With GuruNet, searching doesn't require clicking on your
browser-and the results are ad-free. The program installs a small piece of
Windows software. (A Mac version is due later this year.) After that, you can
call up a reference simply by alt-clicking on any word on your screen or by
entering a search term in a toolbar that hides at the edge of your desktop.
Either way, a window pops open with basic information on the topic and choices
for additional data. For example, a company name will give you company news and
a stock quote, while a technical term will get a definition and an encyclopedia
entry.
GuruNet offers a fun feature for the intellectually curious by including
Princeton University's WordNet lexicon. Like a dictionary, it gives
definitions, but it also provides links to related terms or concepts, producing
chains of information that can lead you far afield of your original query.
When I was a kid, I used to enjoy doing something very much like this by
following cross-references in the unabridged dictionary at the library. The Web,
of course, is an almost limitless reference work, and it's hard to give more
than a tiny sampling of the search tools available.
By Stephen H Wildstrom
in BusinessWeek. Copyright 2004 by The McGraw-Hill Companies, Inc