Best Niche Search Engines

Find what other search engines can't

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Niche search engines are search engines designed to find very specific types of content. You can use them to unearth hidden gems, discover untapped sources of information, and uncover resources that you never even knew existed.

While there are a handful of wildly popular search engines that do a great job at locating most images and web pages, they don't always find what you're after.

The need to showcase niche search engines comes out of the fact that search engines don't search the entire web. The ones listed below are very specific in that they focus on things like books, medical information, images, math, videos, etc.

Mathematics and Science Search Engines

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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.

  • Wolfram Alpha: This website has information and examples on math and science topics, among other subjects, and provides both a search engine and menus to browse through it all.
  • PDR.net: Search for any drug to learn why it's used, common brand names, dosage details, storage considerations, and more.
  • Khan Academy: One of the best reference sites on the web, you can search for all sorts of math and science questions to see videos, articles, exercises, and programs you can take part in to learn more.
  • SearchOnMath: This is a math search engine that runs your search through 11 million formulas on a variety of math-related websites.
  • Google Scholar: A search engine from Google, this one provides one text box to search through tons of academic research.

Books and Printed Materials Search Engines

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Whether you're looking for a rare book, a used book, an audiobook, or a comic book, chances are you can find it on the web using one of these excellent book search engines.

Social Networking Sites Search Engines

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Search engines also exist within most social networking sites, plus there are cross-service search engines that can look for things on multiple social media sites simultaneously.

  • Twitter and Facebook are two examples of social media sites that you can search through to find information regarding other users and the people you follow or are friends with.
  • Social Searcher: A niche search engine for finding mentions, users, and trends across several social media sites, including Twitter, Facebook, Instagram, Tumblr, YouTube, and Reddit.
  • Google Social Search: This unique search engine lets you pick which social media sites to search through, but it uses Google to gather the results.

Torrent Files Search Engines

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Torrent search engines make it easy to search through multiple torrent sites to find something to download.

  • Torrents.io: This torrent search engine can find torrents on any of over 100 torrent sites.
  • Torrentz2: There are millions and millions of torrents indexed on the Torrentz search engine that effectively lets you search through dozens of torrent sites simultaneously.
  • TorrentSeeker: Another free torrent search engine that combines results from several torrent sites.
  • Toorgle: Search for torrents on hundreds of websites at the same time.

Images and Multimedia

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Whether you're looking for an image or an obscure video, or you simply want to see the latest and greatest movie trailers, a search engine is a great place to start.

People and Family Search Engines

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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 Search Engines

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An invisible web search engine finds content that a regular search engine doesn't catalog. The invisible web, also called the deep web and hidden web, is a huge part of the web that you can't find unless you use a special search engine.