BASE-Bielefeld Academic Search Engine

BASE is one of the world's most voluminous search engines, especially for academic web resources. BASE provides more than 240 million documents from more than 8,000 content providers. You can access the full texts of about 60% of the indexed documents for free (Open Access). BASE is operated by Bielefeld University Library.

Collection of E-resources

Books

http://www.bookdepository.com/free

http://en.booksee.org/

http://www.ebook3000.com/

http://www.freebookspot.es/

http://www.ebooks-share.net/

https://archive.org/details/texts

https://openlibrary.org/

http://ebookee.org/

http://www.ulib.org/ULIBAdvSearch.htm

http://onlinebooks.library.upenn.edu/search.html

http://www.freetechbooks.com/

http://search.crossref.org/

https://en.wikibooks.org/wiki/Main_Page

http://www.readeasily.com/

http://e-library.net/free-ebook.htm

http://bookboon.com/

http://www.freebookspot.es/

http://www.free-ebooks.net/

http://manybooks.net/

http://www.getfreeebooks.com/

http://freecomputerbooks.com/

http://www.freetechbooks.com/

https://www.scribd.com/

http://www.onlineprogrammingbooks.com/

http://www.baenebooks.com/c-1-free-library.aspx

http://www.digitallibrary.edu.pk/OAEBooks.html

https://sites.google.com/site/shihabillias/books

Theses and Dissertations

http://www.academicjoy.net/phdcandidate-Theses.html (open this link and choose the repository of any country)

http://www.bac-lac.gc.ca/…/…/theses/Pages/theses-canada.aspx

http://ethos.bl.uk/SearchResults.do

http://etheses.bham.ac.uk/

http://epublications.bond.edu.au/

http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/search

http://dspace.nwu.ac.za/

http://eprints.hec.gov.pk/view/subjects/subjects.html

http://eprints.qut.edu.au/view/subjects/

https://etd.ohiolink.edu/ap:20:0:INSTS:NO:20

http://repository.lib.ncsu.edu/ir/handle/1840.16/1

http://www.opendoar.org/find.php

Novels

http://www.planetpublish.com/

http://www.gutenberg.org/browse/scores/top

http://www.c3f.com/alivfree.html

http://www.planetebook.com/

Digital Libraries

Consortium for Educational Communication

http://cec.nic.in

Directory of Open Access Repositories

http://www.opendoar.org/find.php

eGyanKosh (IGNOU) 

http://www.egyankosh.ac.in/

Library of Congress

http://www.loc.gov

National Digital Library of India

https://ndl.iitkgp.ac.in/

National Science Digital Library (NSDL)

http://nsdl.org/

NISCAIR Online Periodicals Repository

http://nopr.niscair.res.in/

NPTEL provides E-learning through online Web and Video courses in Engineering, Science and humanities streams

http://nptel.ac.in/

The British Library 

http://www.bl.uk

UNESCO Library

http://www.unesco.org/library/

Virtual Library 

http://www.vlib.org

World Digital Library 

http://www.wdl.org

E-journals

Access to Global Online Research in Agriculture (AGORA)

http://www.aginternetwork.org/en

Bioline international - Open Source Journals and Online Resources Directories News and guide to scientific information on the Web

http://www.bioline.org.br/journals

Brill Open E-Journals Collection

http://booksandjournals.brillonline.com/content/journals

Cambridge University Press: Open Access - Open Access journals from Cambridge University Press.

http://journals.cambridge.org/action/openAccessContent

CIMMYT : an international Maize and Wheat Improvement Centre

http://www.cimmyt.org

cogent oa

https://www.cogentoa.com/

Directory of Open Access Journals

http://www.doaj.org

EPW (Economic and Political Weekly)

http://www.epw.in/

European Scientific Co-operative on Phytotherapy - European Phytojournal - free online

http://www.escop.com

Evidence-Based Complementary and Alternative Medicine

http://www.hindawi.com/journals/ecam/

Free Medical Journals 

http://www.freemedicaljournals.com/