If you're looking for simple ways to find what is available on the Invisible Web, curated directories like the ones listed in this article can be extremely useful tools to use. You can use any of these resources to find what is available on the Web that is not as easily searchable from a general search engine query. 

The Invisible Web is easily accessible..that is, if you know where to look. Many individuals and institutions have put together invisible Web directories, which you can use as a jumping off point to surf the Invisible Web.

Here are just a few:

  • The University of Michigan has put together OAIster, (pronounced "oyster") and encourages you to "find the pearls" on the Invisible Web. They have millions of records from more than 405 institutions as diverse as African Journals Online and the Library Network of Western Switzerland.
  • LookSmart's Find Articles.com lets you search print publications for articles; anything from popular magazines to scholarly journals. Be sure to check out their Furl tool to organize your Invisible Web search snippets.
  • The Library Spot is a collection of databases, online libraries, references, and other good info from the Invisible Web. Be sure to check out their "You Asked For It" section, where popular readers' questions are featured.
  • The US Government's official web portal is FirstGov.gov, an extremely deep (as in lots of content) site. You could spend hours here. It's interesting to note how much stuff you can get done online here as well, such as renew your driver's license, shop government auctions, and contact elected officials.
  • Search the vast holding of the UCLA Library online, including their special collections only found on the Invisible Web.
  • Check out Infoplease.com and its searchable Invisible Web databases. Results come from encyclopedias, almanacs, dictionaries, and other online resources only found on the Invisible Web.
  • The Central Intelligence Agency has the World Factbook, a searchable directory of flags of the world, reference maps, country profiles, and much, much more. Great for geography buffs or anyone who wants to learn more about their world.
  • The University of Idaho has created this Repository of Primary Sources, which contains links to manuscripts, archives, rare books, and much more. Covers not only the United States but countries all over the world.
  • Lund University Libraries maintains the Directory of Open Access Journals, a collection of searchable scientific and scholarly journals on the Invisible Web.
  • Looking for scientific information on the Invisible Web? Go to Scirus.com first. You can search either scholarly sources or Web sources or both.
  • Canada, ay? Then check out the Archival Records of Alberta. This is a web gateway to photographs, census records, and other archival records.
  • Want to find a plant that will survive overwatering, lack of sunlight, and general forgetfulness? You can probably find something in the USDA's Plants Database on the Invisible Web.
  • The Human Genome Database contains anything you would ever want to know..well, about the human genome on the Invisible Web, at least.
  • If you've got a medical question, check out The Combined Health Information Database, or CHID online. Its searchable subject directory is very user-friendly, and you can find information on pretty much anything to do with human health here.
  • Nonprofit organizations need searching tools too. The National Database of Nonprofit Organizations is an extensive site on the Invisible Web that not only provides locations and contact information for nonprofits but also gives detailed fiscal reports.
  • EEVL Xtra, a service put together by Heriot-Watt University in Edinburgh, Scotland. This excellent service has the ability to cross-search 20 engineering, mathematics and computing databases, including content from 50 publishers. Find articles, websites, and more on the Invisible Web.

Source: This article was published lifewire.com By Jerri Collins

Categorized in Deep Web

It’s not Spiderman’s latest web slinging tool but something that’s more real world.

The Invisible Web (or The Deep Web) refers to the part of the Internet that’s not indexed by the search engines. Most of us think that that search powerhouses like Google and Bing are like the Great Oracle — they see everything.

Unfortunately, they can’t because they aren’t divine at all; they are just web spiders who index pages by following one hyperlink after the other. And, there are some places where a spider cannot enter.

Take library databases which need a password for access. Or even pages that belong to private networks of organizations. Dynamically generated web pages in response to a query are often left un-indexed by search engine spiders.

Search engine technology has progressed by leaps and bounds. Today, we have real time search and the capability to index Flash based and PDF content. Even then, there remain large swathes of the web which a general search engine cannot penetrate. The term, Deep Net, Deep Web or Invisible Web lingers on. However, of a misnomer they may be.

It’s not that you can’t access the invisible web at all. It’s just that you must use the right tools to do so. Here are ten online indexes and search tools you should hit.

1. The WWW Virtual Library

This is considered to be the oldest catalog on the web and was started by started by Tim Berners-Lee, the creator of the web. So, isn’t it strange that it finds a place in the list of invisible web resources? Maybe, but the WWW Virtual Library lists quite a lot of relevant resources on quite a lot of subjects.

The WWW Virtual Library

For instance, there are 300 sub-libraries with their own categories within the main library. The History sub-library is a good example.

You can go vertically into the categories or use the search bar. The screenshot shows the alphabetical arrangement of subjects covered at the site. Even as many deep web resources have come and gone, the WWW Virtual Library keeps on going even after 26 years.

2. USA.gov

This is the official site of the U.S. Government and the portal to all the public information you need on every federal agency or state, local, and tribal government. The site has an A-Z index of all topicson the portal and it’s a better way to pinpoint the information you want.

USA.gov

Apart from the direct access, use filters like “Only USA.gov,” “Images,” or “Videos” at the top of the page for more specific results. And while you are here, don’t forget the partner sites like Kids.USA.gov and Publications.USA.gov which are other specialized information mines.

3. Science.gov

The blurb on the home page says it all. The scientific search engine taps into 60 databases and over 2,200 scientific websites that cover federal science information including the latest research and development results. Try the advanced search engine page for a deep web search across the government databases that exist in the country.

Science.gov

The federal search tool can be your first doorway for multidisciplinary research that covers everything from agricultural information to the current trends in science education for schools in the U.S. It is also a primary source for searching Federally-sponsored opportunities and programs for STEM students.

4. U.S Geological Survey

The Map Topics and the images alone could be worth the price of admission. There is none because the government site is free. The job of the organization is to broadcast real-time or near real-time data and information on current conditions and Earth observations. But it is also a goldmine for academic and even casual research.

U.S Geological Survey

Try the National Geologic Map Database catalog. Query satellite photos and Earth images with the EarthExplorer tool. Or, lean forward to search 100,000+ scientific publications, and books. And there is so much more.

5. Directory of Open Access Journals

Search for articles in Open Access journals. These are academic papers that are available to anyone “without financial, legal, or technical barriers other than those inseparable from gaining access to the Internet itself.” In short, the knowledge is free.

 

 

Directory of Open Access Journals

DOAJ maintains quality control with rigorous peer review. The current repository has 9000+ journals with almost 2.5 million articles across all subjects. This information may not be available with a Google Search though Google Scholar may be able to access some of the information. But DOAJ is a better research tool as it neatly curated with a well-designed advanced search engine.

6. Voice of The Shuttle

Studying literature? Try Voice of The Shuttle. It is a rich directory for of online resources on literature, the humanities, and cultural studies. The search directory has evolved to include topics like Sci-Tech and Culture, Cyberculture, and Technology of Writing to keep pace with the times.

Voice of The Shuttle

It started as a support tool for the English Dept. of the University of California at Santa Barbara in 1994. Today, it continues to be updated and you can browse through both primary and secondary resources.

7. RxList

Though Google does offer medical information when you search with your symptoms, you need all the help you can get. RxList is a comprehensive database of US prescription medications. The index is a prescription drug encyclopedia, pill identifier, and pharmacy locator rolled into one.

RxList

With the rise of supplements, there is also a dedicated part of the site for vitamins, herbs, and dietary supplements. Each section has its own search tool and/or an alphabetical listing.

The medical resource is a quality offshoot of the WebMD network. The data comes from sources like the FDA, Cerner Multum, and First Data Bank, Inc.

8. Infoplease

This online encyclopedia started its life as a radio quiz show in 1938. Today, Infoplease is an information portal with a host of features. Using the site, you can tap into a good number of databases, electronic journals, almanacs, electronic books, thesaurus, atlas, bulletin boards, mailing lists, online library card catalogs, articles, and directories of researchers.

Infoplease

Infoplease also has a few nice offshoots like Factmonster.com for kids and TeacherVision which are all part of the same educational network.

9. WorldCat

Think of it as the search engine for brick-and-mortar libraries across the world. The meta-catalog for 72,000 libraries in 170 countries can help you find any paper, book, thesis, videos, multimedia assets, and even museum artifacts stored somewhere.

WorldCat

The best way to use this massive database is with the advanced search tool. The information found here is also useful for creating citations for your research paper.

A search on WorldCat.org will return links to the resources in these databases. But to access these resources, you have to log in with a valid library membership. You can also use the “Ask a Librarian” feature to ask for help from librarians in charge.

10. The National Security Archive

This is a non-governmental resource for unclassified security documents. It is the largest repository of such documents outside the U.S. government. Set up to check rising government secrecy, the site uses a custom Google Search to give you access to more than 10 million pages of government documents.

National Security Archive

The papers are primary source material for journalists, security evangelists, and researchers. A growing collection of Electronic Briefing Books are a smaller part of the documents but give you a curated look at U.S. national security, foreign policy, diplomatic and military history, and intelligence policy.

More Deep Web Sites Worth a Mention

  1. Elephind
  2. MagPortal
  3. Free Lunch
  4. Clinical Trials
  5. Project Gutenberg
  6. The Library of Congress
  7. Internet Archive (Including the Way Back Machine)
  8. The National Gallery of Art
  9. Scitation
  10. PubSpace

How Do You Surf the Deep Web?

It is difficult to pin down the size of the Deep Web. But it is estimated to be several times larger than the web we know so well. What is true is that the topic focus of the invisible web makes it a ripe area to hunt for information when we by habit barely click to Page 2 of the Google Search results page.

It is also important here to make a distinction between the “invisible web” and the “Dark Net”. The invisible web is within the reach of a normal web browser while the dark net is dominated by TOR sites (and disreputable anonymous services) that need some technical wizardry to access.

Just like general web search, searching the invisible web is also about looking for the needle in the haystack. Only here, the haystack is much bigger. The invisible web is definitely not for the casual searcher. It is deep but not dark because if you know what you are searching for, information is a few keywords away.

Do you venture into the Invisible Web? Which is your preferred search tool?

Source: This article was published makeuseof.com By Saikat Basu

Categorized in Search Engine

20 Ways To Search the Invisible Web

Unlike pages on the visible Web (that is, the Web that you can access from search engines and directories), information in the Invisible Web is just not visible to the software spiders and crawlers that create search engine indexes. Since this information makes up the vast majority of available content on the Web, we are potentially missing out on some pretty amazing resources.

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. We'll take a look at twenty different search engines, directories, and databases you can use to uncover amazing content.

2 Clusty

Clusty is a meta search engine, meaning it combines results from a variety of different sources, filtering out duplicates and sifting the best content that you might not have seen otherwise to the top of the search results.

More about Clusty

Find Government Information with Clusty
Ten Alternative Search Engines

3 The Internet Archive

The Internet Archive is an amazing database offering access to movies, live music, audio, and printed materials; plus, you can look at older, saved versions of nearly every site ever created on the Internet - over 55 billion at the time of this writing.

More archives

Google News Archive Search
Use the Web to Find Archives
Five online archives that are worth a second look

4 USA.gov

USA.gov is an absolutely mammoth search engine/portal that gives the searcher direct access to a wide variety of information and databases from the United States government, state governments, and local governments. This includes access to the Library of Congress, an A-Z government agency index, the Smithsonian, and much, much more.

More government resources

The Top Twenty Essential US Government Web Sites
Free Public Records Search
Google Uncle Sam

5 The WWW Virtual Library

The WWW Virtual Library gives you instant access to hundreds of different categories and databases on a wide variety of subjects, anything from Agriculture to Anthropology. 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."

6 Science.gov

Science.gov searches over 60 databases and over 2200 selected websites from 15 federal agencies, offering 200 million pages of authoritative U.S. government science information including research and development results. More about this astonishingly useful resource: "Science.gov is a gateway to government science information and research results. Currently in its fifth generation, Science.gov provides a search of over 60 scientific databases and 200 million pages of science information with just one query, and is a gateway to over 2200 scientific Websites (see Science.gov fact sheet).

Science.gov is an interagency initiative of 19 U.S. government science organizations within 15 Federal Agencies. These agencies form the voluntary Science.gov Alliance which governs Science.gov."

7 Wolfram Alpha

Wolfram Alpha is a computational search engine, which means it stores a vast amount of pure data available to you via not only search, but also a question and answer format. More about Wolfram Alpha: "We aim to collect and curate all objective data; implement every known model, method, and algorithm; and make it possible to compute whatever can be computed about anything. Our goal is to build on the achievements of science and other systematizations of knowledge to provide a single source that can be relied on by everyone for definitive answers to factual queries."

8 Alexa

Alexa gives you specific analytical information about Web properties. More about this intriguing resource: "Alexa's traffic estimates are based on data from our global traffic panel, which is a sample of millions of Internet users using one of over 25,000 different browser extensions. In addition, we gather much of our traffic data from direct sources in the form of sites that have chosen to install the Alexa script on their site and certify their metrics."

Website owners especially can benefit from the data that Alexa offers; for example, here's a list of the top 500 sites on the Web.

9 Directory of Open Access Journals

The Directory of Open Access Journals (DOAJ) indexes and provides access to quality open access, peer-reviewed journals. More about this online directory: "The Directory of Open Access Journals is a service that indexes high quality, peer reviewed Open Access research journals, periodicals and their articles' metadata. 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 Directory aims to increase the visibility and ease of use of open access scientific and scholarly journals—regardless of size and country of origin—thereby promoting their visibility, usage and impact."

More than 10,000 journals and millions of articles are searchable using the DOAJ.

10 FindLaw

FindLaw is a gigantic repository of free legal information on the Internet, and offers one of the largest online lawyer directories available online. You can use FindLaw to locate an attorney, learn more about U.S. law and legal topics, and participate in the very active FindLaw community forums.

11 The Online Books Page

The Online Books Page, a service offered by the University of Pennsylvania, gives readers access to over two million books freely accessible (and readable) on the Internet. Users will also gain access to significant directories and archives of online texts,as well as special exhibits of particularly interesting classes of online books.

12 The Louvre

The Louvre online simply begs to be discovered and cherished by art lovers all over the world. View thematic collections of art, get more information about the background of selected works, view art aligned with historical events, and much, much more.

13 The Library of Congress

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. Collection highlights include Congressional records, digital preservation resources, the Veterans History project, and the World Digital Library. More about this national treasure: "The Library of Congress is the nation's oldest federal cultural institution and serves as the research arm of Congress. It is also the largest library in the world, with millions of books, recordings, photographs, maps and manuscripts in its collections."

14 Census.gov

If you're looking for data, then Census.gov is one of the first places you'll want to visit. More about this considerable resource: "The U.S. Census Bureau conducts demographic, economic, and geographic studies of other countries and strengthens statistical development around the world through technical assistance, training, and software products. For over 60 years, the Census Bureau has performed international analytical work and assisted in the collection, processing, analysis, dissemination, and use of statistics with counterpart governments in over 100 countries."

From geography to population statistics, you'll be able to find them here.

15 Copyright.gov

Copyright.gov is another U.S. government resource you can put in your Invisible Web search toolbox (for even more essential U.S. government sites, check out The Top Twenty U.S. Government Websites). Here, you can view works registered and documents recorded by the U.S. Copyright Office since January 1, 1978, as well as search records of registered books, music, art, and periodicals, and other works, including copyright ownership documents.

16 Catalog of U.S. Government Publications

The Catalog of U.S. Government Publications gives users instant access to electronic and print publications from the legislative, executive, and judicial branches of the U.S. government, with more than 500,000 records generated since July 1976.

17 Bankrate

Bankrate, an online financial resource that's been around since 1996, offers a huge library of financial information; anything from current interest rates to articles on CUSIP and much, much more.

18 FreeLunch

FreeLunch 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. We cover more than 180 countries, over 150 global metro areas, all U.S. states, metro areas and counties. Our databases contain more than 200 million economic, financial, demographic and consumer credit time series, with 10 million added every year."

19 PubMed

PubMed, part of the National Center for Biotechnology Information, U.S. National Library of Medicine, is the perfect resource for anyone who's looking up medical or medical-related information. It offers more than 24 million citations for biomedical literature from MEDLINE, life science journals, and online books.

20 FAA Data and Research

The FAA Data and Research pages offer information on how their research is done, the resulting data and statistics, and information on funding and grant data. Anything from Aviation Safety to Unruly Passengers (seriously) can be found here.

Categorized in Deep Web

The Invisible Web refers to the vast amount of content and information that is not easily discoverable in a general search engine query, such as databases, private networks, or password-protected information. However, there are a wide variety of high quality Invisible Web search tools, search engines, and directories that can help you mine this fantastic resource that is considered to be at least 500 times larger than the visible Web.

The following Invisible Web resources will connect you to a virtual goldmine of knowledge, anything from medical dictionaries to moving picture archives to academically vetted articles and journals. Each of these links connects you to a resource that will help you find information that is not easily found with just a simple, rudimentary search. These tools help you do a deep dive into untapped treasure troves of information. 

The Invisible Web: A Brief Introduction

The Invisible Web: What is the Invisible Web? Is it some kind of Area 52-ish, X-Files deal that only those with stamped numbers on their foreheads can access? Well, not exactly. If you're not familiar with what the Invisible Web really is, just keep reading to get a quick overview of what the Invisible Web really is, and how you can use it to find information. 

Invisible Web Search Engines

Five Search Engines You Can Use to Mine the Invisible Web: 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.....keep reading to understand what these search engines can offer you.

The Top Ten Most Popular Search Engines can be used as a jumping off point for much of the Web's harder to find information. 

FactBites: Factbites retrieves results that are academically oriented, i.e., dictionaries, encyclopedias, universities, and many .org sites (typically non-profit organizations).

Invisible Web Directories and Portals

Invisible Web Directories: Many individuals and institutions have put together invisible Web directories, which you can use as a jumping off point to surf the Invisible Web. 

Medical Information on the Invisible Web: The Invisible Web has a goldmine of medical databases and specialized medical sites that just don't show up on a cursory search in the search engines. Best of all, this information is free.

Humanities and Literature Resources on the Invisible Web: There are plenty of humanities resources on the Invisible Web, such as arts, literature, and history Web sites that will give you greater insight on what you might be reading for a class or help you on a research project.

Invisible Web Research Databases and Reference Tools

47 Alternatives to Wikipedia: Wikipedia is perhaps the most popular reference site online, with millions of high quality articles available on virtually any topic. However, there are limits to what Wikipedia can offer.

How to Find Archives on the Web: Are you trying to find information about a historical event? Looking for online archives for news, music, popular culture, or movie information?

Google Scholar: From one place, you can search across many disciplines and sources: peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professional societies, preprint repositories, universities and other scholarly organizations.

Find People with the Invisible Web

Invisible Web People Search Resources: The following resources can help you delve deep into the Invisible Web, making your people searches even more rich, detailed, and authoritative.

15 Search Engines to Help You Find Someone: Finding people on the Web is getting easier and easier. Here are fifteen people search engines you can use to find the person you're looking for on the Web.

How to Find Someone on the Web, Step by Step: Need to find someone? Here's a step by step guide to finding someone on the Web using tools and services that are designed to find people online.

Use the Invisible Web to Find Public Records

The Top Twenty Essential US Government Web Sites: There are literally hundreds of thousands of US government and government-related Web sites that offer free access to a wide variety of information.

How to Find Public Records: Here are the best free public record search databases online, from obituaries to census records.

Do a Background Check on the Web: You can use the Web to do a free background check via a multitude of free sources on the visible and invisible Web.

Books and Printed Materials on the Invisible Web

How to Find and Read Full Books Online: More people than ever before in history are using the Web as a free library, and with good reason: there are literally thousands of free books online that you can download in their entirety, listen to in an audio book version, or simply read within your browser window.

How to Find Works in the Public DomainPublic domain works are works whose copyrights were issued before 1923, and have now passed into the public domain, meaning that they can be used, reproduced, or incorporated in any way without any restrictions.

How to Find PDF Files: If you are trying to find PDF (Adobe Acrobat) files on the Web, there's a number of ways that you can accomplish this. 

Author:  Wendy Boswell

Source:  https://www.lifewire.com

Categorized in Deep Web

No, it’s not Spiderman’s latest web slinging tool but something that’s more real world. Like the World Wide Web.

The Invisible Web refers to the part of the WWW that’s not indexed by the search engines. Most of us think that that search powerhouses like Google and Bing are like the Great Oracle”¦they see everything. Unfortunately, they can’t because they aren’t divine at all; they are just web spiders who index pages by following one hyperlink after the other.

But there are some places where a spider cannot enter. Take library databases which need a password for access. Or even pages that belong to private networks of organizations. Dynamically generated web pages in response to a query are often left un-indexed by search engine spiders.

Search engine technology has progressed by leaps and bounds. Today, we have real time search and the capability to index Flash based and PDF content. Even then, there remain large swathes of the web which a general search engine cannot penetrate. The term, Deep Net, Deep Web or Invisible Weblingers on.

To get a more precise idea of the nature of this ‘Dark Continent’ involving the invisible and web search engines, read what Wikipedia has to say about the Deep Web. The figures are attention grabbers – the size of the open web is 167 terabytes. The Invisible Web is estimated at 91,000terabytes. Check this out – the Library of Congress, in 1997, was figured to have close to 3,000terabytes!

How do we get to this mother load of information?

That’s what this post is all about. Let’s get to know a few resources which will be our deep diving vessel for the Invisible Web. Some of these are invisible web search engines with specifically indexed information.

Infomine

invisible web search engines

Infomine has been built by a pool of libraries in the United States. Some of them are University of California, Wake Forest University, California State University, and the University of Detroit. Infomine ‘mines’ information from databases, electronic journals, electronic books, bulletin boards, mailing lists, online library card catalogs, articles, directories of researchers, and many other resources.

You can search by subject category and further tweak your search using the search options. Infomine is not only a standalone search engine for the Deep Web but also a staging point for a lot of other reference information. Check out its Other Search Tools and General Reference links at the bottom.

The WWW Virtual Library

invisible web search engines

This is considered to be the oldest catalog on the web and was started by started by Tim Berners-Lee, the creator of the web. So, isn’t it strange that it finds a place in the list of Invisible Web resources? Maybe, but the WWW Virtual Library lists quite a lot of relevant resources on quite a lot of subjects. You can go vertically into the categories or use the search bar. The screenshot shows the alphabetical arrangement of subjects covered at the site.

Intute

invisible web search engines

Intute is UK centric, but it has some of the most esteemed universities of the region providing the resources for study and research. You can browse by subject or do a keyword search for academic topics like agriculture to veterinary medicine. The online service has subject specialists who review and index other websites that cater to the topics for study and research.

Intute also provides free of cost over 60 free online tutorials to learn effective internet research skills. Tutorials are step by step guides and are arranged around specific subjects.

Complete Planet

search invisible web

Complete Planet calls itself the ‘front door to the Deep Web’. This free and well designed directory resource makes it easy to access the mass of dynamic databases that are cloaked from a general purpose search. The databases indexed by Complete Planet number around 70,000 and range from Agriculture to Weather. Also thrown in are databases like Food & Drink and Military.

For a really effective Deep Web search, try out the Advanced Search options where among other things, you can set a date range.

Infoplease

search invisible web

Infoplease is an information portal with a host of features. Using the site, you can tap into a good number of encyclopedias, almanacs, an atlas, and biographies. Infoplease also has a few nice offshoots like Factmonster.com for kids and Biosearch, a search engine just for biographies.

DeepPeep

search invisible web

DeepPeep aims to enter the Invisible Web through forms that query databases and web services for information. Typed queries open up dynamic but short lived results which cannot be indexed by normal search engines. By indexing databases, DeepPeep hopes to track 45,000 forms across 7 domains.

The domains covered by DeepPeep (Beta) are Auto, Airfare, Biology, Book, Hotel, Job, and Rental. Being a beta service, there are occasional glitches as some results don’t load in the browser.

IncyWincy

how to use the invisible web

IncyWincy is an Invisible Web search engine and it behaves as a meta-search engine by tapping into other search engines and filtering the results. It searches the web, directory, forms, and images. With a free registration, you can track search results with alerts.

DeepWebTech

how to use the invisible web

DeepWebTech gives you five search engines (and browser plugins) for specific topics. The search engines cover science, medicine, and business. Using these topic specific search engines, you can query the underlying databases in the Deep Web.

Scirus

how to use the invisible web

Scirus has a pure scientific focus. It is a far reaching research engine that can scour journals, scientists’ homepages, courseware, pre-print server material, patents and institutional intranets.

TechXtra

TechXtra concentrates on engineering, mathematics and computing. It gives you industry news, job announcements, technical reports, technical data, full text eprints, teaching and learning resources along with articles and relevant website information.

Just like general web search, searching the Invisible Web is also about looking for the needle in the haystack. Only here, the haystack is much bigger. The Invisible Web is definitely not for the casual searcher. It is a deep but not dark because if you know what you are searching for, enlightenment is a few keywords away.

Do you venture into the Invisible Web? Which is your preferred search tool?

Author:  Saikat Basu

Source:  http://www.makeuseof.com/

Categorized in Search Engine

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