The document discusses the invisible web, also known as the deeper web, which contains content not found by traditional search engines like Google. It provides examples of invisible web search engines like Deeper Web and Complete Planet that can access this deeper content. It also lists databases in the invisible web for articles, journals, and other resources not accessible through surface web searches, as well as some lesser known but useful resources like the Internet Public Library and Library of Congress legislative database.

1.  What is the ‘invisible web’?
 The invisible web reaches content that may not be caught by
traditional search engines like Google or Yahoo, and it is not
information you are likely to stumble over in a traditional web
search.
 It is also known as the deeper web.
 Try these invisible web search engines
 Deeper web search engine powered by Google:
www.deeperweb.com
 Direct search: http://www.freepint.com/gary/direct.htm
 Complete Planet: http://www.completeplanet.com/
 Try these invisible web databases
 Listing of deep web sites: http://aip.completeplanet.com/aip-
engines/help/largest_engines.jsp
 Directory of Open Access Journals: http://www.doaj.org/
 Educator’s Desk Reference: http://www.eduref.org/
 Find Articles: http://www.findarticles.com/
Searching the invisible web, K. Marzano and M. Post.
 Super Searchers web page:
http://www.infotoday.com/supersearchers/
 PubMed: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi
 Try a few other lesser known (or often lesser used)
resources
 ipl2 (a website that combined the resources of the Internet
Public Library and Librarians Internet Index):
http://www.ipl.org/
 THOMAS, the Library of Congress legislative database:
http://thomas.loc.gov/
 The U.S. government’s official web portal:
http://www.usa.gov/
 The Virtual Private Library: http://virtualprivatelibrary.com/