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.