Google is so powerful that he actually hides other search engines from us. We simply do not know about the existence of most of them.
Meanwhile, there are still a huge number of excellent search engines in the world that specialize in books, science and other smart information.
Here is a list of sites you have never heard of.
- www.worldcat.org – search the contents of 20,000 world libraries. Find out where the nearest rare book you need is.
- https://link.springer.com – access to more than 10 million scientific documents: books, articles, research protocols.
- www.refseek.com – academic resources search engine. More than a billion sources: encyclopedias, monographs, magazines.
- www.worldcat.org – search the contents of 20,000 world libraries. Find out where the nearest rare book you need is.
- https://link.springer.com – access to more than 10 million scientific documents: books, articles, research protocols.
- www.bioline.org.br – a library of bioscience scientific journals published in developing countries.
- http://repec.org – volunteers from 102 countries have collected almost 4 million publications in economics and related sciences.
- www.science.gov – US government search engine for over 2,200 research sites. More than 200 million articles are indexed.
- www.pdfdrive.com – the largest website for free download of PDF books. They claim more than 225 million titles.
- www.base-search.net – one of the most powerful search engines for academic research texts. Over 100 million scientific articles, 70% of which are free.
And some torrent trackers – https://web.archive.org/ and. https://booktracker.org/index.php