More about this amazing resource: "The WWW Virtual Library (VL) is the oldest catalogue of the Web, started by Tim Berners-Lee, the creator of HTML and of the Web itself, in 1991 at CERN in Geneva.Unlike commercial catalogues, it is run by a loose confederation of volunteers, who compile pages of key links for particular areas in which they are expert; even though it isn't the biggest index of the Web, the VL pages are widely recognised as being amongst the highest-quality guides to particular sections of the Web." searches over 60 databases and over 2200 selected websites from 15 federal agencies, offering 200 million pages of authoritative U. government science information including research and development results.However, that's where Invisible Web search engines, tools, and directories come in.There are many Invisible Web search tools that you can use to dive into this wealth of information, as you'll see from the following list.The Directory aims to be comprehensive and cover all open access scientific and scholarly journals that use an appropriate quality control system (see the section below) and is not limited to particular languages or subject areas.
The Ultimate Guide to the Invisible Web: The Invisible Web is a mammoth resource that is mostly untapped.One of the most vivid and interactive sites on this list of Invisible Web resources, the Library of Congress offers an incredibly rich and varied array of content. Free Lunch gives users the ability to quickly and easily find free economic, demographic, and financial data: "provides comprehensive and extensive historical and forecast data at the national and subnational/regional levels representing over 93% of global GDP. Our databases contain more than 200 million economic, financial, demographic and consumer credit time series, with 10 million added every year." Pub Med, part of the National Center for Biotechnology Information, U. National Library of Medicine, is the perfect resource for anyone who's looking up medical or medical-related information.Collection highlights include Congressional records, digital preservation resources, the Veterans History project, and the World Digital Library. We cover more than 180 countries, over 150 global metro areas, all U. It offers more than 24 million citations for biomedical literature from MEDLINE, life science journals, and online books.The group's name and password have to be the same for all participants, username can be anything.Group name and username doesn't have to be handled as a secret information, unlike the password.This includes access to the Library of Congress, an A-Z government agency index, the Smithsonian, and much, much more.