The Invisible Web (aka Deep Web) is that humoungous slice of the Internet’s web pages that traditional search engines either have not indexed or cannot index. Often, if they cannot index a page ...

Invisible Web Gateways Maybe you don't want to dink around with finding databases on the Web; you would like to go straight to the databases themselves. There are sites that serve as invisible Web ...

Definition: The deep Web, also called the invisible Web, refers to the mass of information that can be accessed via the World Wide Web but can't be indexed by traditional search engines -- often ...

Known as the 'Invisible Web,' or 'Deep Web,' the material residing in searchable databases not normally indexed by Web search engines can provide more specific and relevant information—if you know ...

Why? Largely because the web isn’t like a database—it’s highly unstructured and there are few standards for how information should be organized for optimum efficiency.

Mike Bazeley’s article: Diving deep into the Web, profiles a Bay Area start-up named Glenbrook Networks that is developing technology to crawl material that’s hidden in deep/invisible web databases.

Two quality directories for finding Invisible Web databases and resources include www.Invisible-Web.net and the Librarians' Index to the Internet, www.lii.org.

They roam through public Web servers, recording the addresses and descriptions of the Web pages they discover. The Invisible Web is made up of the information stored in databases.