Top 6 Underground Search Engines You Never Knew About. Advertisement I love Google, Bing and Yahoo just as much as the next Internet user, but sometimes you really want to dig down into a particular subject. In order to do that, you really need access to those underground search engines that may not be quite as well known, but they dig much more deeply into specialized areas of the Internet than the general search engines are capable of. In many cases, these search engines are tapped into what is currently termed the “invisible web,” which is the information available on the Internet that standard search engines don’t have access to, because they are buried behind query forms or directory requests.
The following 6 underground search engines that I chose are not porn sites, illegal piracy sites or anything else that could get you in trouble with the law, or with your significant other. The available list of Torrent sites that are plugged into this meta-search is impressive, and even more impressive are the search results. Invisible Web: What it is, Why it exists, How to find it, and Its inherent ambiguity.
What is the "Invisible Web", a.k.a. the "Deep Web"? The "visible web" is what you can find using general web search engines. It's also what you see in almost all subject directories. The "invisible web" is what you cannot find using these types of tools. The first version of this web page was written in 2000, when this topic was new and baffling to many web searchers.
Since then, search engines' crawlers and indexing programs have overcome many of the technical barriers that made it impossible for them to find "invisible" web pages. These types of pages used to be invisible but can now be found in most search engine results: Pages in non-HTML formats (pdf, Word, Excel, PowerPoint), now converted into HTML. Why isn't everything visible? There are still some hurdles search engine crawlers cannot leap. The Contents of Searchable Databases.
How to Find the Invisible Web Simply think "databases" and keep your eyes open. Examples: plane crash database languages database toxic chemicals database. Home. Welcome to INFOMINE: Scholarly Internet Resource Collections. The WWW Virtual Library. Home. Encyclopedia, Almanac, Atlas, Biographies, Dictionary, Thesaurus. Free online reference, research & homework help.
DeepPeep: discover the hidden web. IncyWincy: The Invisible Web Search Engine. Deep Web Technologies Federated Search. For scientific information. TechXtra: Engineering, Mathematics, and Computing.