Transcript Unit D PPT
Internet Research Fourth Edition Unit D Internet Research: Unit D Finding Specialty Information Internet Research – Illustrated, Fourth Edition 2 Objectives Understand specialty information Find people and places Locate businesses Search periodical databases Internet Research – Illustrated, Fourth Edition 3 Objectives Find government information Find online reference sources Search vertically Join the social search Internet Research – Illustrated, Fourth Edition 4 Understanding specialty information How to find specialty information Scope and focus Free or pay? Incomplete coverage Internet Research – Illustrated, Fourth Edition 5 TERMS TO USE Deep Web or Invisible Web ~ Web content that is invisible to and nonsearchable by most traditional search tools; the largest part of the Web Surface Web or Visible Web ~ Web content that most Internet search tools can search and index Dynamically generated Web pages ~ Web pages that a database creates based on a specific query or a login name and password Internet Research – Illustrated, Fourth Edition 6 Understanding specialty information This conceptual graphic contrasts Internet content searched by traditional search tools to Internet content searched by specialty search tools If this figure were to scale, the circle representing the Deep Web would be dozens of times larger than the circle representing the Surface Web. Internet Research – Illustrated, Fourth Edition 7 Finding People and Places search for names of people search for phone numbers search for street addresses search for email addresses search for map and travel information Internet Research – Illustrated, Fourth Edition 8 Finding People and Places Remember that: online white pages are not comprehensive it is difficult to find individuals’ emails in online directories Internet Research – Illustrated, Fourth Edition 9 CLUES TO USE Capital letters are not needed when searching for proper names for people, cities, business, etc. Yellow/white-pages tools return better results if you enter less information rather than more Internet Research – Illustrated, Fourth Edition 10 CLUES TO USE Many online map sites have special features that can be useful for planning a trip or finding local sites. Some sites provide directions, area landmarks or services, links to hotels or historical sites, and different views, including road-map views, aerial views, and hybrid views. Internet Research – Illustrated, Fourth Edition 11 Locating Businesses search for businesses by name search for businesses by category search for business addresses search for nearby businesses Search for maps to businesses Internet Research – Illustrated, Fourth Edition 12 Searching Periodical Databases Periodical databases ~ provide some of the most authoritative and current information in the invisible Web ~ the most comprehensive ones are usually accessed at libraries due to high subscription fees ~ some online ones provide recent information for free but charge for archive material Internet Research – Illustrated, Fourth Edition 13 Types of periodicals Scholarly / Research Professional / Special interest General interest Popular Internet Research – Illustrated, Fourth Edition 14 Types of periodicals Scholarly / Research ~ provide information on original research and experiments ~ are published by a university or organization ~ is for scholars, professionals, and university faculty and students ~ has resources provided in citations and/or bibliographies Internet Research – Illustrated, Fourth Edition 15 Types of periodicals Professional / Special interest ~ provide information on professional practice and case studies ~ published by an organization or professional association ~ designed for professionals and university students/faculty in the field ~ resources usually provided in citations and/or bibliographies Internet Research – Illustrated, Fourth Edition 16 Types of periodicals General interest ~ provide information to inform, entertain, and advocate ~ published by a commercial publisher ~ designed for the somewhat knowledgeable reader; may contain somewhat technical language ~ resources often mentioned in text Internet Research – Illustrated, Fourth Edition 17 Types of periodicals Popular ~ provide information to entertain ~ published by a commercial publisher ~ designed for a general audience ~ resources rarely mentioned Internet Research – Illustrated, Fourth Edition 18 CLUES TO USE Online news stands include: free general ones, such as: NewsLink, MagPortal, NewsDirectory, and FindArticles partially free one-title ones, such as: The New York Times, The Times, and The Washington Post free links from subject guides, such as from: Librarians’ Internet Index (LII) and Internet Public Library (ipl) costly subscription ones usually available at libraries, such as: ProQuest and InfoTrac Internet Research – Illustrated, Fourth Edition 19 Finding Government Information Governments publish much information Governments often provide links, portals, vortals, and specialty search engines for the information they produce Internet Research – Illustrated, Fourth Edition 20 TERMS TO USE portals ~ large Web gateways providing access to huge amounts of information, often including search engines, news, shopping, e-mail, chat, and more vortals ~ a portal that focuses on one topic or industry is called a vertical portal or a vortal Internet Research – Illustrated, Fourth Edition 21 Finding Online Reference Sources Like print reference sources, online reference sources include almanacs, dictionaries, directories, encyclopedias, bibliographies, maps, etc. Library Web sites often link to useful online reference sources. Academic library Web sites often link to sites useful to specific classes on campus Internet Research – Illustrated, Fourth Edition 22 Finding Online Reference Sources To find good online reference sources: use a trailblazer page in the field use an online virtual library or subject guide ask a teacher in the field explore your library Web site for links ask a librarian Internet Research – Illustrated, Fourth Edition 23 Searching Vertically Vertical searches focus on specific categories of media content Vertical searches are usually for video, audio, images, and news Other vertical searches can be for specific categories such as maps, jobs, doctors, shopping, health, etc. Internet Research – Illustrated, Fourth Edition 24 Searching Vertically Larger search tools sometimes provide an option to limit search results by media type Specialty search tools may specialize in returning only one type of content Some specialty search tools provide special features, such as podcasts, which provide automatic downloads of media and content Internet Research – Illustrated, Fourth Edition 25 CLUES TO USE Blended or universal search: Blended search or universal search combines traditional search results with vertical search results These searches are useful for scanning what is available, but can provide irrelevant results if you can only use a certain media type. The major search engines all currently use blended search when a vertical search isn’t requested. Internet Research – Illustrated, Fourth Edition 26 Joining the Social Search Social search relies on community participation and human judgment to locate information of common interest and answer specific questions Social search works well for finding subjective material that requires informed opinions Internet Research – Illustrated, Fourth Edition 27 Joining the Social Search Common forms of social search include: ~ Blogs ~ Bookmarking or Tagging sites ~ Collaborative Harvesters ~ Question and Answer sites (Q&A) Internet Research – Illustrated, Fourth Edition 28 Joining the Social Search Blogs ~ sites where users post commentaries and invite comments ~ can be general or personal ~ can be specific to topic and audience ~ are usually unread, except by the writer or family and friends ~ sometimes are must-reads within specific professional or cultural groups Internet Research – Illustrated, Fourth Edition 29 Joining the Social Search Blog search engines find blog posts by topic Blogosphere refers to all blog content and the interconnections that form a social network Internet Research – Illustrated, Fourth Edition 30 Joining the Social Search Social bookmarking or tagging sites ~ allow users to store and describe their favorite Web pages with tags or descriptors ~ allow searching for popular sites and content by topic ~ often rank results by popularity Internet Research – Illustrated, Fourth Edition 31 Joining the Social Search Collaborative harvester sites ~ are aggregate or collected forms of social search ~ let users nominate and vote on content ~ rank results by popularity ~ allow searching for popular sites and content by topic Internet Research – Illustrated, Fourth Edition 32 Joining the Social Search Q&A or Question and Answer sites ~ allow users to ask, answer, and search for answers to questions ~ usually require registration to post a question or to provide an answer to a question ~ allow questions to be asked in normal English syntax ~ often allow the user who posted the question to rate answers and choose the best one, which will rank it higher when the next user searches for an answer to that question Internet Research – Illustrated, Fourth Edition 33 CLUES TO USE Wikis: Wiki software lets anyone using a Web browser add or modify Web page content “Wiki” is taken from the Hawaiian word for “quick” Wikis often provide links to authoritative online resources A wiki, or any group communication tool that allows users to create and edit content, risks accidental or intentional misinformation The largest, most popular wiki is Wikipedia.org Internet Research – Illustrated, Fourth Edition 34 Finding specialty information includes: understanding specialty information finding people and places searching periodical databases finding government information finding online reference sources searching vertically joining the social search Internet Research – Illustrated, Fourth Edition 35 INTERNET RESEARCH End