Open Access Resources
Search Engines and Aggregagors
- https://www.google.com/
- http://scholar.google.com/
- academic.microsoft.com
- https://www.base-search.net/about/en/
- https://gettheresearch.org
- https://www.wolframalpha.com/
- https://www.pdfdrive.com/ ( 9 crorepdf documents)
- https://www.pdfdrive.com/ (first multidisciplinary aggregator of open access journals and papers)
- https://core.ac.uk/ (13 crores of open access papers)
- https://archive.org/ (library of millions of books, movies, software, music etc)
- https://www.ncbi.nlm.nih.gov/pubmed/ (30 million citations)
Journals
- https://road.issn.org/
- https://www.elsevier.com/about/open-science/open-access/open-access-journals
- http://www.kkhsou.in/library/oajse/
- http://www.opensciencedirectory.net/
- http://www.openaccessjournals.com/journals.html
- http://www.wileyopenaccess.com/view/journals.html
- http://www.jscholaronline.org/
- http://www.indianjournals.com/ijor.aspx?target=open_access_publications_list
- http://www.sciencedirect.com/science/jrnlallbooks/all/open-access
- http://www.emeraldinsight.com/page/openaccess
- doaj.org (13600 journals and 42 lakh articles)
- https://www.ias.ac.in/Journals/Overview/ (Indian Academy of Sciences Journals)
- http://nopr.niscair.res.in/ (18 research journals and 3 popular science magazines)
Institutional Repositories
Open Access theses, dissertations and Books
- https://oatd.org/
- https://pqdtopen.proquest.com/search.html
- http://www.ndltd.org/
- http://ethos.bl.uk/Home.do;jsessionid=0AC7EAA7BD348911F6D005DA0A599AEE
- https://sg.inflibnet.ac.in/
- http://etheses.whiterose.ac.uk
- https://www.doabooks.org/
- http://www.oapen.org/home
- http://oad.simmons.edu/oadwiki/Publishers_of_OA_books
- https://www.gutenberg.org/
- http://repec.org/
- sciencedirect.com
- tamilvu.org (Tamil literature)
- https://www.projectmadurai.org/ (Tamilbooks)
- http://www.onlinenewspapers.com/