Google is one of many search engines we all use on a daily basis when researching online. Google is very powerful and can “hide” other search systems or resources from its results. We just don’t know the existence of most of them, and there are many that could be useful giving you a better library of information to choose from.

Meanwhile, there are still a huge number of excellent resources online in the world who specialise in books, science, and interesting information.

Below is a list of websites for you to keep which you may not have come across of in your previous searches: – Academic Resource Search. More than a billion sources: encyclopaedia, monographies, magazines. – Contents of 20 thousand worldwide libraries. Find out where lies the nearest rare book you need to read. – Access to more than 10 million scientific documents: books, articles, and research protocols. – A library of scientific bioscience journals published in developing countries. – Volunteers from 102 countries have collected almost 4 million publications on economics and related science. – An American state search engine on 2200+ scientific sites. More than 200 million articles are indexed. – The largest website for free download of books in PDF format. Claiming over 225 million names. – One of the most powerful researches on academic studies texts. More than 100 million scientific documents, 70% of them are free.

Let us know in the comments if this was useful – some great reading out there waiting to be discovered.