| Name of the Portal | Uniform Resource Locator |
Government College of Education Library (Srinagar) | https://coesgr-library.blogspot.com/ |
| Project Gutenberg | https://www.gutenberg.org/ |
| Directory of open access journals | http://doaj.org/ |
| Directory ofOpen Access Books | https://www.doabooks.org/ |
| National Digital Library of India | https://ndl.iitkgp.ac.in/ |
| International Children’s Digital Library | http://www.childrenslibrary.org/ |
| EPG Pathshala | https://epgp.inflibnet.ac.in/ |
| VidyaMitra (integrated E-content Portal) | https://vidyamitra.inflibnet.ac.in/ |
| Hathi trust Digital Library | https://www.hathitrust.org/ |
| Open Text Books Library | https://open.umn.edu/opentextbooks/ |
| Shodhganga- a reservoir of Indian theses | https://shodhganga.inflibnet.ac.in/ |
| Open Access Theses and Dissertations | https://oatd.org/ |
| Springer Open Journals | https://www.springeropen.com/journals |
| LibriVox – Audio Books | https://librivox.org/ |
| Book Boon | https://bookboon.com/ |
| ROAR: Registry of Open Access Repository | https://roar.eprints.org/ |
| vidyamitra | https://vidyamitra.inflibnet.ac.in/ |
| BASE – Bielefeld Academic Search Engine | http://www.base-search.net/about/en/ |
| Digital Public Library of America | http://dp.la/ |
| International Institute of Social Studies – Free Scholarly Resources | https://www.iss.nl/en/library/information-resources/free-scholarly-resources |
| Open Humanities Press | http://openhumanitiespress.org/index.html |
| Open Library (Internet Archive) | https://openlibrary.org/ |
| Sage Open | http://sgo.sagepub.com/ |
| Springer Open | https://www.springeropen.com/journals |
| Taylor & Francis Open Journals | http://www.tandfonline.com/page/openaccess/openjournals |
| OpenDOAR | http://www.opendoar.org/ |
| Open Educational Resources Commons | http://www.oercommons.org/ |
| Open Textbook Library | https://open.umn.edu/opentextbooks/ |