The Deep Web **

What is the Deep Web Aka the Invisible WebContents from thousands of specialized, searchable databases Contents from web pages that search engines cannot index

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*Searching the (regular) Internet> 170 million web sites made up of billions of web pages/documents >4.5 billion queries/searches per monthPayment schemesPay for inclusion: $ fees for a business to be included in index Pay for position: sites are rankedPay per click: Keywords auctioned to advertisers Pay per action: Advertisers pay only when a click results in an action.

*Payment schemes: Consequences

Results may be from sites which can pay to be listed: Results may not be most appropriate.Nonprofit sites are listed but not given prioritySearches result in pop up advertisements Must use more than one search toolDeep web sites arent included in the indexes of search tools

Google vs. the Deep Web Search engines need static and stable links to pages in order to index themGoogle indexes 20% of the web missing 80% of internet contentGoogle does not typically index Proprietary sitesSites with scriptsDynamic sitesSites blocked by search engine policySites with special formatsSearchable databases

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How big is the Deep Web?550 billion documents 500x the content of the surface Web Internet search tool = searches 20% of available content. Deep web is not Internet2

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Why use the Deep Web?Higher quality sourcesSelected and organized by subject expertsDynamic display Customized data setsSome data is visual, and not word searchable

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Whats in the Deep Web?Searchable databasesDownloadable files & spreadsheetsImage and multi-media filesData setsVarious file formats such as .pdf, .xls, .mdb, Lots of government information*

Deep Web Collections Web Lens :http://www.weblens.org/scholar.htmlInfo Mine:http://infomine.ucr.edu/Internet Archive: http://www.archive.org/index.php

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How to Keep Track of the Deep WebSubscribe to:ListservInformation Sources Blog Discussion BoardRead:The Periodical LiteratureConsult:LibrariansFacultyColleagues

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Deep Web Sites for English/British Lit Middle English Dictionary http://quod.lib.umich.edu/m/med/University of VA E-Text English Language Resources http://etext.lib.virginia.edu/collections/languages/english/The New Chaucer Society http://artsci.wustl.edu/~chaucer/*

Deep Web Sites for English/British LitThe Internet Public Library Online Literary Criticism Collection http://www.ipl.org/div/litcrit Romanticism on the Net http://www.ron.umontreal.ca/ The Bront Sisters Web http://www.lang.nagoya-u.ac.jp/~matsuoka/Bronte.html *

Deep Web Sites for English/British LitMr. William Shakespeare and the Internet http://shakespeare.palomar.edu

The Voice of the Shuttle http://vos.ucsb.edu The Victorian Web http://www.victorianweb.org/ *

Deep Web Sites for English/British LitThe Rossetti Archive http://www.rossettiarchive.org/

Introductory Guide to Critical Theory http://www.cla.purdue.edu/academic/engl/theory/

Anglo-Saxon England Guide to Online Resources http://www.the-orb.net/encyclop/early/pre1000/asindex.html

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Deep Web Sites for English/British LitRepresentative Poetry Online http://rpo.library.utoronto.ca/display/index.cfmThe Poetry Archive URL:http://www.poetryarchive.org

Open Source Shakespeare www.opensourceshakespeare.org/

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Deep Web Sites for English/British LitBlake Digital Text Project www.english.uga.edu/~wblake/home1.html The Blake Archive www.blakearchive.org/

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Deep Web ExerciseWorking as a group:Annotate the links on slides 11-16.Post your annotations, comments, searching tips, to the British Lit Deep Web Wiki. Connect to the Research Wikis link from the librarys homepage: www.cabrini.edu/library

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