Alternative search engines to Google

 Google is not the only search system and so if you want to be comprehensive in your search use other search engines. Here are a number of excellent search engines you may have seen or used.

www.refseek.com - Academic Resource Search. More than a billion sources: encyclopedias, monographs, magazines.

www.worldcat.org - a search for the contents of 20 thousand worldwide libraries. Find out where the nearest rare book you need.

https://link.springer.com - access to more than 10 million scientific documents: books, articles, research protocols.

www.bioline.org.br is a library of scientific bioscience journals published in developing countries.

http://repec.org - volunteers from 102 countries have collected almost 4 million publications on economics and related science.

www.science.gov is an American state search engine on 2200+ scientific sites. More than 200 million articles are indexed.

www.base-search.net is one of the most powerful researches on academic studies texts. More than 100 million scientific documents, 70% of them are free

DuckDuckGo They do not track your activities at ALL. There are no ads.

Google Scholar can be useful for academic searchers

Ecosia is a search engine based in Berlin, Germany. According to Ecosia, it is CO2-negative, supports full financial transparency, and protects the privacy of its users. History Ecosia was launched on 7 December 2009.

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JSTOR  A digital library specializing in academic journals, books, and primary sources across various disciplines, including arts, humanities, social sciences, and sciences. It provides access to a vast collection of scholarly resources for research and academic purposes.

PubMed A search engine by the National Institutes of Health (NIH) that specializes in biomedical literature, including research articles, clinical studies, and reviews. It's a valuable resource for medical professionals, researchers, and students in the field of health sciences.

IEEE Xplore Digital Library A database focusing on technology and engineering research, including journals, conference proceedings, standards, and eBooks. It covers a wide range of topics in electrical engineering, computer science, and related disciplines.