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Navigating Web-Based Information: Finding Specialty Content

Discover effective strategies for locating specific, high-quality information online, from using intelligent agents to accessing deep web databases. Learn how to find specialty information such as business directories, periodicals, government sites, and more. Explore tools like intelligent agents that automate searches and sort results efficiently.

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Navigating Web-Based Information: Finding Specialty Content

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  1. ITIS 1210Introduction to Web-Based Information Systems Internet Research Four Finding Specialty Information

  2. Introduction • What if you need very specific information? • Addresses • Telephone numbers • Definition of a word • Web site for a business

  3. Introduction • May be stored in an online database • Usually not indexed by search engines • Specialty Web sites include • Telephone directories • Maps • Periodicals • Government sites • Mailing lists/newsgroups

  4. Introduction • Usually must visit each site independently to find information • Now can use intelligent agents to search for you

  5. Specialty Information • Search engines know about the visible Web • What about the invisible (deep) Web? • Online databases not indexed by search engines • Usually require direct access • May require username/password • May be dynamically generated based on a specific query

  6. Password protected files Dynamically generated pages Databases Newsgroups File formats (.pdf, .xls, .doc, .ppt, …) Visible Web Specialty Information Deep Web

  7. Specialty Information • How to find specialty information? • Search via a specialty Web site • May require subscription • Libraries are good resources • ProQuest • EBSCOHost

  8. Specialty Information • Scope or focus • Tends to be narrow • Higher quality for specific purpose • May find overlap with multiple sites on the same general subject

  9. Specialty Information • Free or pay? • General information may be free • Details you have to pay for • May require registration • Name, address, email, credit card • Often a means to spam you • Current information may be free • Archived information requires subscription/fee • Review privacy policies

  10. Specialty Information • Incomplete coverage • Up-to-date information hard to come by • Valuable • May have to pay for it • Access may be restricted by owner • Corporate information • Trade secrets • Inventory database • Employee directories

  11. Finding People or Places • Search by • Name • Phone number • Street address • Email address • Not necessarily comprehensive • Individuals may opt out • People move

  12. Finding People or Places • Where to go for people? • Yahoo people search • WhoWhere • Switchboard • WhitePages • US Search

  13. Finding People or Places • Where to go for maps? • MapQuest • Yahoo Maps • WhereIs • EarthCam • Google Maps • Strange map • Dig a Hole

  14. Finding Businesses • Yellow Pages • Yellow.com • YellowPages.com • InfoSpace.com • AnyWho • International • Europages

  15. Finding Businesses • Reverse lookups • ReversePhoneDirectory.com • AnyWho.com • InfoSpace.com

  16. Searching Periodicals • Periodical databases include • Popular magazines • Newspapers • Scholarly journals • Some may be online only • Salon.com • May not carry same stories as print version

  17. Searching Periodicals • Subscription databases • Proquest • InfoTrac • Searchable • MagPortal.com • FindArticles

  18. Government Information • Portals are common • FedWorld.gov • FirstGov.gov • Government Printing Office

  19. Online Reference • Lots of kinds • Almanacs • Dictionaries • Encyclopedias • Directories • May be licensed for patron use only • May be able to access from home

  20. Online Reference • Resources • FILExt.com – File extensions • Netiquette – Online etiquette • Wikipedia.org – Encyclopedia • Webopedia.com - Encyclopedia • m-w.com – Dictionary

  21. Mailing Lists & Newsgroups • Web is not just information • Communication and Interaction • Mailing lists (listserv) • Automatically email all subscribers • Newsgroups (Usenet) • Virtual bulletin boards • Messages posted • Can read and respond

  22. Mailing Lists & Newsgroups • Mailing list resources • LSoft • coollist • Mailman • Newsgroup resources • newzbot.com • Usenet Portal • Google Groups

  23. Intelligent Agents • As Internet grows, finding the right information becomes harder and harder • New tools evolving: intelligent search agent • Software that automates searches • “Knows” how to query parts of deep Web • Can rank & sort results

  24. Intelligent Agents Resources • AgentLand • BotSpot • 123bots • Popup-busters • Intelligent Agents

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