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Thursday, November 02, 2006

Beyond Google: 119 Resources to the Invisible Web

Think "search", and nine times out of ten, you think Google. However, Google only indexes a small fraction of the total information available online. The rest, called the invisible, or deep, web, is estimated to be 500 times larger than the searchable web. Many of these resources are locked away in databases, behind password-protected walls, or just don't allow search engines to crawl their pages.

The Online Education Database has put together a list of 119 resources that encompass the invisible web. These are authoritative sites that you could feel confident using as sources for your research papers or just for your own personal curiosity. Topics range from health and medicine to economic and jobs data. Luckily, most of these resources don't require a subscription.

I think the list of deep web search engines is more useful in general:
  1. Clusty — A metasearch engine that combines the results of several top search engines.
  2. Intute — A searchable database of trusted sites, reviewed and monitored by subject specialists.
  3. INFOMIME — A virtual library of Internet resources relevant to university students and faculty. Built by librarians from the University of California, California State University, the University of Detoit-Mercy, and Wake Forest University.
  4. Librarians' Internet Index — A search engine listing sites deemed trustworthy by actual human librarians, not just a Googlebot.
  5. Internet Archive — A database of tens of thousands of movies, live music, audio, texts, and home of the Wayback Machine that allows you to find old versions of web pages, over 55 billion.
  6. direct search — A list of hundreds of specialty databases and search engines. No longer maintained, but still perhaps the most complete list of the deep web.
Research Beyond Google: 119 Authoritative, Invisible, and Comprehensive Resources


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