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The Deep Web &
A Quick Review of CCOL
James Backer, Ph.D.
Cambridge College
Searching the Surface Web
• Via search engines and meta-search engines
• Use of image granted by Brightplanet.com http://www.brightplanet.com/deepcontent/tutorials/DeepWeb/index.asp
The Deep Web
• Internet resources that most spiders can’t get to:
– Non-HTML material
– Dynamic HTML
– Library Catalogs
– Databases
– Discussion Groups and News Groups
– Telnet
– Others
Why don’t Search Engines Get To the Deep Web?
• “Spiders” only search via hyperlinks, recording info about static HTML pages
Deep Web vs. Surface Web
• Deep Web is approximately 500 times larger than the Surface Web
• Deep Web is estimated to be 3 times better in quality
• The Deep Web is growing much faster than the Surface Web
• 95% of the Deep Web is free, but users must first pass through the front pages
• Currently technology is being developed to systematically search the Deep Web
How Can We Search the Deep Web?
• Use of image granted by Brightplanet.com http://www.brightplanet.com/deepcontent/tutorials/DeepWeb/index.asp
Searching the Deep Web
• Manual Searches:– Go to URLs of databases– Join Discussion Lists and use archives– Etc.
• This can be very time consuming!• Buy into commercial service
– Cambridge College Online Library
• In future: Deep Web Search Engines– Brightplanet.com & others
Access CCOL via CC’s Home Page:
Username & Password
• Found on FC desktop:
Library Conference
• Changes each term
• Don’t give this information out to non-CC people!
E-Global Library
First Time Users:
Now for the Data Bases:
Each Data Base has unique, but similar structure: Explore!
Other Databases in CCOL
• Electric Library• ERIC
E*Subscribe• PsycARTICLES • Wilson Select
Plus • Article First •
• CINAHL• ERIC • GPO• MEDLINE• PapersFirst • ProceedingsFirst • WorldCat
But, why bother?
• Now we know how to use search engines to get WWW pages !!!
• Most academic institutions assume that simple Web pages are highly questionable, if not worthless.
• Remember, anyone can publish a Web page.
CCOL Offers:
• Easy access to academic journals
• Some of the journals are refereed
• Many of them are full text
Have a Library Problem? Ask an Online Librarian!
Have a Technical Problem? Contact Tech Support!
Still Have Problems?
• If either the Online Librarian did not respond, or…..
• The tech support people did not respond…
• Please contact Maida Tilchen, the Project Manager for Library Services at Cambridge College. She is in the First Class e-mail Directory.
Sources:
• Bergman, M. (2002). The Deep Web: Surfacing Hidden Value. http://www.brightplanet.com/deepcontent/tutorials/DeepWeb/index.asp
• Permission requested and received for all non-Cambridge College images.