PROQUEST E-BOOKS CENTRAL http://ebookcentral.proquest.com/ – Over 810,000 e-books from more than 650 publishers.

Z-Libraryhttps://ng1lib.org – Z-Library is one of the largest online libraries in the world that contains over 9,945,695 books. They aim to make ebooks accessible to everyone.

PDF DRIVE – https://www.pdfdrive.net/ – Provides access to over 48,168,883 eBooks for you to download for free. (Login Not Required)

All Books Free – http://www.allbooksfree.com/ – include: fiction, children’s books and  poetry

Bookboon (http://bookboon.com/)

Free online textbooks. They are downloadable. Cover topics such as economics, statistics, IT, engineering and natural science.

Directory of Open Access Books (DOAB)http://www.doabooks.org/DOAB is a discovery service for peer reviewed books published under an Open Access license. DOAB provides a searchable index to the information about these books, with links to the full texts of the publications at the publisher’s website or repository.

Knowfree– www.knowfree.net – It is a web portal where users are able to exchange freely e-books, video training and other materials for educational purposes and self-practice. It contains loads of free technology, engineering, web development and business skills e-books and video tutorials too.

Many books.net – http://manybooks.net/ – free e-books for your PDA, ipod or ebook reader. There are more than 26,658 eBooks. There may be a limited number of text books relating to IUM courses. Try searching by “Genre” first.

Neotake– www.neotake.com – ebook search engine which has indexed several eBooks in various formats like ePUB,PDF,LRF,TXT,Mobipocket etc. it also has mobile version of the site. More than 200,000 eBooks have been indexed currently.

Online Books – http://onlinebooks.library.upenn.edu/Online Books is a website that facilitates access to 20,000 books that are freely readable over the Internet.

Open Book Publishers – http://www.openbookpublishers.com/

This is an independent academic publisher, run by scholars who are committed to making high-quality research available to readers around the world. It publishes monographs and textbooks in the Humanities and Social Sciences. All books are available to read for free online.

 Pdfgeni– www.pdfgeni.com  – search for download books, novels, manuals, articles, document templates, reports, data sheets, in pdf format.

Textbook revolution – http://textbookrevolution.org/index.php/Main_Page

On this site you’ll find links and reviews of textbooks and select educational resources. Some of the books are PDF files, others are viewable online as e-books, or some are simply web sites containing course or multimedia content.

Free Thesaurus – http://freethesaurus.com/

Free Thesaurus is a comprehensive online thesaurus of synonyms, antonyms, and related words. The thesaurus contains more than 145,800 unique entries from three top sources: Collins Thesaurus of the English Language – Complete and Unabridged, The American Heritage Roget’s Thesaurus, and WordNet.