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Effective Internet Search Strategies: Search Engines & Directories Wendy E. Moore, M.S. in L.S. Acquisitions/Serials Librarian University of Georgia School.

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Presentation on theme: "Effective Internet Search Strategies: Search Engines & Directories Wendy E. Moore, M.S. in L.S. Acquisitions/Serials Librarian University of Georgia School."— Presentation transcript:

1 Effective Internet Search Strategies: Search Engines & Directories Wendy E. Moore, M.S. in L.S. Acquisitions/Serials Librarian University of Georgia School of Law Library Internet Legal Research – ICLE May 8, 2003

2 Searching the Web… Choosing the RIGHT tool for your SPECIFIC information need… To become an effective searcher, look at:  Basic Concepts and Terms  Major Categories of Search Tools, including the BEST available tools for each

3 What is a “search engine?” “search engine” is often used as a generic term describing both:  Directories – “human powered”  Search Engines – “computer software powered”

4 Directories…  alphabetical hierarchy of topics with links to web sites  created by human editors – who select web sites and classify them into categories and subcategories  cover only a TINY portion of the Web  sometimes include reviews/ratings of web sites  access via browsing menu categories or keyword search  record limited info about web site – NOT full-text indexing of sites  useful for finding high-quality, human reviewed web sites on broad, general topics

5 Search Engines…  created by computer software programs called: crawlers, robots, spiders, and worms  moves from one site to another, scanning each site it visits and recording the contents in its database  users search its database by keyword to locate web sites  cover MANY more web sites than a directory can  less consistent quality of sites than a directory  useful when you are are seeking web sites about narrow, specific topics or that mention obscure words or phrases

6 DIRECTORIES Organize web sites into topical categories that can be browsed easily  General Directories, both commercial and non-commercial  Legal Directories, specializing in law related topics

7 General Directories Commercial The one name to know in commercial directories is:YAHOO! http://www.yahoo.com/  most popular  longevity

8 Yahoo!

9 Yahoo! http://search.yahoo.com/

10 Yahoo!  Yahoo has become a good-example of a “Hybrid Search Tool”

11 General Directories Non-Commercial What makes non-commercial directories different?  authority of content  quality over quantity  provide access to high-quality web-based information for serious researchers

12 Open Directory Project http://dmoz.org/  best known  content used for other directories on hundreds of sites and search engines  volunteer editors  classed over 3.8 million web sites

13 Librarians’ Index to the Internet http://lii.com/  annotated subject directory  11,000 resources  can browse or search

14 Legal Directories Why use a specialized legal directory?  limited scope makes them easier to search than general directories or search engines  more depth of coverage  authoritative sources and editors

15 Legal Information Institute http://www.law.cornell.edu/  non-profit, dedicated to free legal content on the Web  famed for US Supreme Court Cases  links to many resources

16 FindLaw http://www.findlaw.com/  very popular – “Yahoo!” of Legal web sites  subdivisions and topics  commercial site from Thomson-West  searchable

17 WashLaw WEB http://www.washlaw.edu/  non-profit service to legal community  alphabetical  nearly 200 topics  practical topics  “Subject Index”

18 Hieros Gamos http://www.hg.org/  international focus  non-profit from Lex Mundi  clear categories subdivided into topics  translated into French, German, Italian, and Spanish

19 AllLaw http://alllaw.com/  small, practice oriented  broad divisions  “Legal Topics”  commercial site

20 JURIST http://www.jurist.law.pitt.edu/  non-profit  topics in left side bar  “Legal Research” subdivisions  “World Law”

21 SEARCH ENGINES What makes one search engine different from another? Remember you are NOT searching the Web directly – instead you are searching a DATABASE of info gathered by the search engine’s crawler  SIZE – how many web pages have been scanned and recorded in its database  UP-TO-DATE – how well does the database reflect the constantly changing Web

22 Google http://www.google.com/  top choice  “Google it”  over 3 billion web pages  refreshed monthly  first stop when search the Web  relevance ranking based on link analysis

23 Google

24 All the Web http://www.alltheweb.com/  excellent back-up search engine  up-to-date coverage  over 2 billion web pages  refreshed 1-2 weeks  FAST search technology

25 Alta Vista http://www.altavista.com/  third option when no luck with other sites  oldest crawler-based search engine (1995)  “Google” of its day  lagged behind in size and freshness of database  Babel Fish translator

26 How to search a “search engine”… TIP #1 – Use more than one search engine  no search engine covers more than 20% of the Web  missing 80% of current web sites  remarkably very little overlap between search engine databases  many web sites found by only one search engine

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28 TIP #2 – Use the “Advanced Search” page  features allow you to construct a precisely-targeted search – just like you can in Westlaw or LexisNexis  learning the specific syntax and codes to execute detailed searches can be time-consuming  bypass the introductory search page and go straight to the alternative search page – called “Advanced Search” in Google, All the Web, and AltaVista

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32 How NOT to search a “search engine”… META-SEARCHERS/META-INDEXES  pass your search on to several search engines  better in theory than in reality  retrieves fewer results from each search engine  do not allow for “Advanced Search” features  less effective than learning a few good search engines  Ixquick, MetaCrawler, and DogPile

33 Legal Search Engines  created by crawling only certain sites, domains, or types of files  aim to improve relevancy over a general search engine  Look at two legal search engines:  LawCrawler  Meta-Index for U.S. Legal Research

34 LawCrawler http://lawcrawler.findlaw.com

35 Meta-Index for U.S. Legal Research http://gsulaw.gsu.edu/metaindex/

36 Resources for Further Learning  Search Engine Showdown http://www.searchengineshowdown.com/  Search Engine Watch http://searchenginewatch.com/  LLRX http://www.llrx.com/  The Virtual Chase: Teaching Legal Professionals How To Do Research http://www.virtualchase.com/

37 Finally… Learning and applying a few of the search tools mentioned will make your search for information on the Web more successful!


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