Niche Search Engines That Find What Others Can't

Search engines you can use to dig into content you can't find anywhere else

Niche search engines are tools designed to dig deep into the hidden, or invisible, part of the Web not easily accessed by general search queries. These search engines will find content that you won't be able to find with a generalized web search. 

The following  search engines focus on a wide variety of content areas - books, medical information, images, books, mathematical information, etc. You can use these search engines to unearth hidden gems of content, discover untapped sources of information, and uncover resources that you never even knew existed. 

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Mathematics and Science

math and science search engines

Whether you need to solve a complicated math problem or look up scholarly discussions of eclipses, the following search engines can help you find solutions to a wide variety of mathematical and science-related questions.

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Books and Printed Materials

Whether you're looking for a rare book, a used book, an audio book, or a comic book, chances are you can find it on the Web using one of these excellent book search engines that focus purely on books, magazines, and other printed materials.

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Social Networking Sites

Use caution on social media

Search within popular social networking sites, or search across a wide span of different social sites; you can do that with the following search tools.

  • Twitter Search Engines: Here are the top five best Twitter search engines that you can use to find people, popular content, links, and much more.
  • Six Ways You Can Use the Real-Time Web: What is the real-time Web? Basically, the real-time Web is simply a catchphrase for almost instant information, from conversations to news to collaboration. These search engines help you target exactly what you're trying to find on the real-time Web.
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Torrent Files

p2p

Torrent search engines make it easy for searchers to locate files across a number of different bittorrent sites.

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Images and Multimedia

movie theater

Whether you're looking for an image, an obscure video, or simply want to see the latest and greatest movie trailers, the Web is a good place to look. Here are the top underground search engines that take multimedia content and focus on making it as searchable as possible.

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The Invisible Web

world wide web

The Deep, or Invisible, The Web holds much more content then what you can find with a general search engine query. The following search engines can help you access that material.

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People and Family Search

Find People Online

Finding people, communicating with people, keeping in touch with people....these activities are the most popular on the Web and with good reason. Connect with others you might have lost touch with underground people search engines.

  • Invisible Web People Search: The Invisible Web is a goldmine of information, and since the Invisible Web is larger by far than the parts of the Web we can access with a simple search engine query, there's potentially much more information available.
  • Use the Web to Conduct a Background Check: Want to get information on someone you know, or see what's on the record for yourself? You can use the Web to do a free background check via a multitude of free sources.