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11 C H A P T E R © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved1 Searching for Information The key to unleashing the research potential of.

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Presentation on theme: "11 C H A P T E R © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved1 Searching for Information The key to unleashing the research potential of."— Presentation transcript:

1 11 C H A P T E R © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved1 Searching for Information The key to unleashing the research potential of the Internet is to know how to use the search engines. That’s what this chapter is about.

2 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved2 C H A P T E R 11 Objectives:  Conduct subject-oriented searches using the Yahoo! directory of the World Wide Web.  Perform full-text key word searches using AltaVista and Lycos.  Use the advanced search syntax to find what you are looking for efficiently.  Use Excite and InfoSeek to perform concept searches based on ideas instead of specific key words.

3 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved3 C H A P T E R 11 Objectives:  Use metasearching to search several search engines at once at MetaCrawler, Dogpile, and CNET Search.com.  Know how to get online help from human beings who will conduct searches on your behalf at askme.com and askanexpert.com.  Conduct scholarly searches across a broad range of academic disciplines at ERIC, Northern Light, StudyWeb, About.com, and Britannica.com.

4 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved4 C H A P T E R 11 Objectives:  Use multimedia search engines to find pictures, audio, and video, in addition to text.  Search Usenet newsgroups to find information in discussions of current research topics.  Learn how to find people using Bigfoot, WhoWhere, Switchboard, and Yahoo! People Search.  Get maps and driving instructions from MapQuest.  Know how to find out about new search engines and improved search strategies.

5 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved5 C H A P T E R 11 Subject-Oriented Searching of Directories  The subject-oriented directories use a combination of human beings and robots called spiders that search the Web continually, organizing what’s found into a hierarchical directory of topics.  When you conduct a subject-oriented search, the search engine searches this directory and provides you with a list of items related to your topic.

6 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved6 C H A P T E R 11 Subject-Oriented Searching of Directories Yahoo! is the most popular subject- oriented directory. The Yahoo advanced search options screen is displayed on the left.

7 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved7 C H A P T E R 11 Key Word Searching  Instead of organizing the Web according to subject areas, however, key word search engines let you search for key words in documents, regardless of the “subject” of the documents.  Key word search engines are likely to find more than subject-oriented searches.

8 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved8 C H A P T E R 11 Key Word Searching with AltaVista AltaVista is a search engine that was invented by the Digital Equipment Corporation as the Web’s first full-text key word search engine. Now a freestanding company, AltaVista’s Web address is

9 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved9 C H A P T E R 11 Advanced Search Syntax  To make the most effective use of key word search engines like AltaVista, you need to know how to do an advanced search that enables you to combine key words with logical operators such as AND, OR, NOT, and NEAR to narrow the scope of your search.

10 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved10 C H A P T E R 11 Advanced Search Syntax AltaVista’s Advanced Search screen.

11 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved11 C H A P T E R 11 Key Word Searching with Lycos Another Popular keyword search engine is Lycos, which was invented at Carnegie Mellon University. The search engine’s name Lycos is the Latin word for wolf spider.

12 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved12 C H A P T E R 11 Concept Searching  To get a search engine to find the kind of information you seek can be time-consuming and tedious.  Concept-oriented search engines can help users who have difficulty with key word searching.

13 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved13 C H A P T E R 11 Concept Searching Excite is a concept-based search engine that you will find at InfoSeek is the search engine that powers the searches at the popular GO.com portal. The Google search engine adds a new twist to searching by using an automated method that ranks relevant Web sites based on the link structure of the Internet itself.

14 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved14 C H A P T E R 11 Metasearching  Metasearching means to use a search engine that invokes the other search engines automatically, conducting different kinds of searches for you, collating the results into one list of hits, and reporting back to you.

15 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved15 C H A P T E R 11 Metasearching MetaCrawler conducts searches by sending your queries to several Web search engines, including Lycos, WebCrawler, Excite, Thunderstone, AltaVista, FindWhat, Yahoo, LookSmart, Google, Kanoodle, About.com, RealNames, InfoSeek, GoTo.com, Sprinks, and DirectHit.

16 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved16 C H A P T E R 11 Metasearching In addition tosearch engines, Dogpile also searches Usenet newsgroups, FTP sites, newsfeeds, stock quotes, yellow pages, white pages, maps, weather reports, auctions, audio, and image files. You can find Dogpile on the Web at

17 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved17 C H A P T E R 11 Metasearching CNET’s Search.com is a metasearch engine that searches more than 700 engines, including Yahoo!, AltaVista, Magellan, Lycos, Inktomi, Direct Hit, and Snap.

18 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved18 C H A P T E R 11 Human Searching  You may wish to consider using a human search service.  A person skilled in searching published information sources, proprietary databases, and the Internet will find an answer and e- mail you the results.

19 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved19 C H A P T E R 11 Human Searching At Askme.com, more than 120,000 experts are standing by to answer your questions across a broad range of subject areas. Getting a question answered is a three-step process.  First, you search or browse the subject areas and choose a category in which you want to ask a question.  Second, you ask the question.  Third, you pick up your answer, which can either arrive in your or be retrieved at the Web site.

20 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved20 C H A P T E R 11 Human Searching  At Pitsco’s Ask an Expert Web site you can ask questions in 14 different categories.  The answers come to you from real-world experts who have volunteered to answer your questions.

21 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved21 C H A P T E R 11 Scholarly Searches  Anyone can create a Web page about any topic, regardless of how much the Web page author knows.  One way of filtering out the bad information is to use one of the search engines that restrict themselves to so-called scholarly information that has been published in refereed journals.

22 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved22 C H A P T E R 11 Scholarly Searches ERIC stands for Educational Resources Information Center. It searches education journals and other scholarly documents, including books, conference proceedings, symposia, studies, and tests.

23 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved23 C H A P T E R 11 Scholarly Searches At Northern Light, you can limit your search to a special collection comprising nearly 7,000 trusted, full-text journals, books, magazines, newswires, and reference sources.

24 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved24 C H A P T E R 11 Scholarly Searches Designed primarily for student use, the articles are graded according to their Flesch-Kincaid Grade Level. Topics range from articles that can be read by children to more advanced material suitable for college students.

25 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved25 C H A P T E R 11 Scholarly Searches Formerly known as The Mining Company, About.com takes a unique approach to providing access to scholarly sources. It hires real scholars to serve as guides in more than 700 subject areas.

26 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved26 C H A P T E R 11 Scholarly Searches Britannica.com is a free knowledge and learning center that includes the complete, online version of the Encyclopaedia Britannica. The obvious advantage of the online version is that you have access to all the latest information at once.

27 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved27 C H A P T E R 11 Multimedia Searches  There are millions of pictures, audio files, animations, and videos that can play on your computer.  The challenge is to find the ones you are interested in.  Happily, most of the search engines provide ways for you to search for multimedia.

28 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved28 C H A P T E R 11 Multimedia Searches At the Lycos Web site, you enter your key words, select the kind of media you are looking for, then press the Search button. The Lycos search engine will return a list of pictures, movies, streams, or sounds dealing with your topic.

29 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved29 C H A P T E R 11 Multimedia Searches Lycos The Lycos multimedia search screen. Previewing pictures at the Lycos multimedia search site.

30 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved30 C H A P T E R 11 Multimedia Searches AltaVista has a multimedia section that lets you search for images, audio, and video. The audio search includes MP3, which is a very popular audio file format for sharing music over the Internet.

31 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved31 C H A P T E R 11 Newsgroup Searches  Newsgroups are a rich source of information about current research in progress. Most disciplines have active newsgroups where current research topics are discussed.

32 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved32 C H A P T E R 11 Newsgroup Searches At you can perform key word searches of information written in Usenet newsgroups. You can also search only on a name, to get an index of all of the topics and messages a given person may have written in a newsgroup.

33 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved33 C H A P T E R 11 File Searches  There are millions of files at FTP sites all across the Internet that you can download to your computer.  Many of these files are Web pages but there are other kinds of files,that are not in Web page format.  To find these other kinds of files, you need to use a search engine that can do FTP file searches.

34 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved34 C H A P T E R 11 File Searches  Archie is a search tool for FTP servers.  Archie searches the collection of files in the FTP database which consists of the millions of files that are available on anonymous FTP sites.

35 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved35 C H A P T E R 11 File Searches CNET’s Download.com is a handy site for finding and downloading useful files to your computer. File categories include MP3/audio, business/finance, desktop enhancements, development tools, home/education, games, Internet, multimedia/design, utilities, and drivers.

36 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved36 C H A P T E R 11 How to Find People  In addition to helping you find Web pages, newsgroups, and scholarly documents, the Internet can also help you locate people.

37 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved37 C H A P T E R 11 How to Find People Bigfoot offers a huge catalog of addresses and white page directories.

38 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved38 C H A P T E R 11 How to Find People WhoWhere lets you look up addresses, residential listings, toll-free 800 numbers, and millions of businesses, with maps and directions. You will find WhoWhere at

39 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved39 C H A P T E R 11 How to Find People Switchboard is a white pages service that enables you to find people and businesses. It handles more than 5 million look-ups for people and businesses each week. You’ll find Switchboard at

40 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved40 C H A P T E R 11 How to Find People At you can search by the person’s name, city, or state to find out the person’s address or street address. You can also search thousands of public databases with one click to find addresses, property records, licenses, and court records.

41 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved41 C H A P T E R 11 Finding Places  The next time you plan a trip, treat yourself by getting a map and list of specific driving instructions before you take to the roads

42 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved42 C H A P T E R 11 Finding Places Mapquest.com. enables you to find over three million locations worldwide, print driving directions, and create and save personalized maps. Live traffic updates are a popular feature that can save you time when roads close or traffic snarls.

43 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved43 C H A P T E R 11 Finding Places

44 © 2001 The McGraw-Hill Companies, Inc. All Rights Reserved44 C H A P T E R 11 Index of Collected Search Engines A good place to learn about search engines is the Search Engine Watch, where you will find announcements of the latest search services and Web searching tips. Hosted by Internet.com, you will find the Search Engine Watch at


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