engines are an essential part of the Internet. Visit Webopedia.com for a
definition of search
engine. There are numerous search engines available to the public,
offering everything from topic-specific searches to meta-searches
that use multiple search engines to generate results. Today's most popular
search engines use a variety of different methods to scour the Internet
for information. These methods include Web bots, shared indexing, and site
popularity and relevance ratings. Some search engines even search
newsgroups and Web pages alike. With so many search choices available
online, it might be difficult to choose the right one for your search
topic. As a result of the proliferation of search engines today, many Web
sites offer search engine reviews, statistics of usage, and other
interesting metrics to rate search engine performance.
Technology The technology behind many of today's search engines is
developing all the time. A Metasearch engine is a search engine
that connects to a multiple of other search engines to generate a single
list of results. A spider is a Web-roaming program used to find
documents pertaining to your search. Indexers are often used in
conjunction with spiders to scan and rank documents returned by a
spider. For a thorough look into the development of search technology over
the last few years, visit this
Web page. Here you will find explanations of many terms and ideas
related to modern search engines.
In recent years, a
technology known as meta tags has been developed. Read a thorough
description of a meta tag at foldoc.org.
A meta tag allows Web designers to make their sites more visible to modern
search engines. Keyword and content meta tags allow Web designers to
insert keywords and descriptive phrases into the HTML code thus making it
easier for search engines to find and index their site. Information and
resources related to meta tags and their uses is provided on this http://searchenginewatch.com.
Popular Search Engines
Below are just a few of the most popular, highly rated search engines.
Each search site listed has unique search features and functions.
(www.google.com) is currently the
most popular search engine on the Internet. Google offers a large subject
index and a unique way of using public feedback, popularity ratings, and
keyword relevance to generate useful results. Google reportedly receives
over 100 million search requests each day.
features three different search modes: simple, advanced, and “Power”
search. Each mode uses a combination of Alta Vista's main index as well as
other indexes. Alta Vista reportedly receives over 50 million queries per
(msn.com) uses the Inktomi database
and Looksmart for its directory, allowing users to access one of the
largest databases of indexed Web pages. MSN is one of the most frequently
used search sites, receiving 40 to 50 million “hits” each day. For
more information about other popular search engines that use the Inktomi
database, follow this
(www.dogpile.com) is a
metasearch engine that organizes search results from many popular search
engines. It works by sending out a query to several search engines. Once
the results are returned, they are compiled into one index. Dogpile is
useful for general searching as well as for comparing results from
different search engines.
is another meta-search engine that features customizable searches, topic
directories for specific search topics, and an option for information
about MetaCrawler, which includes useful tips and tools.
In 2004 Yahoo! Search became an original web crawler-based search engine,
with a reinvented crawler called Yahoo!
Slurp. This new technology is the result of combining technology
from Inktomi and Overture Services, Inc. (AlltheWeb, AltoVista) which it
acquired in 2002-2003.
Resources, Reviews, and Statistics Because of the numerous search
engines available to the Internet user, many sites offering search engine
resources, reviews, and statistics about popular search engines and other
general information, have sprung up in the last few years. The All Search
Engines site (www.allsearchengines.com)
is an excellent source for finding extensive lists of popular, new, and
topic-specific search engines. It also offers links to other search engine
resources on the Internet. The site www.searchengines.com
not only performs searches, but also adds search features to Web sites. It
is used for the most part by Web developers and designers. Additional
information for Web designers can be found at www.searchenginewatch.com.
Here you will also find recent articles about search engines, tips on how
to use them, and reviews and ratings of some of the most popular search
engines. This site
offers search resources sorted by country or region, and draws from over
1200 search engines. And finally, at www.notess.com/search,
you will find many search resources such as reviews, statistics about
popular search engines, search news, and tips.