Open-Access Online Platforms

These are learning and research materials in any medium – digital or otherwise – that reside in the public domain or have been released under an open license that permits no-cost access, use, adaptation and redistribution by others with no or limited restrictions.

• OER Commons
  OER Commons is a public digital library of open educational resources. Explore, create, and collaborate with educators around the world to improve curriculum.
  URL: https://www.oercommons.org/ 
• Phil CHED connect
  https://phlconnect.ched.gov.ph/home
  PHL CHED Connect Platform contains higher education materials in various formats that are useful for teaching, learning and research purposes.
  
• Open Textbook Library
  Open textbooks are textbooks that have been funded, published, and licensed to be freely used, adapted, and distributed. 
  URL: https://open.umn.edu/opentextbooks
  
  
• Directory of Open Access Journals
  DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.
  URL: https://doaj.org/
  
  
• CORE
  It is a multidisciplinary aggregator of open access research. It allows users to search more than 66 million open access articles.
  URL: https://core.ac.uk/
  
  
• ETHOS – British Library
  ETHOS allows you to search over 400,000 doctoral theses in a variety of disciplines. Although some full texts are behind paywalls, you can limit your search to items available for immediate download.
  URL: https://ethos.bl.uk/Home.do 

• DBLP Computer Science Bibliography
  
  
        is an online index of major computer science publications. Although it provides access to both free access and those behind a paywall, you can limit your search to only full-text articles.
• URL: https://dblp.org

• Social Science Research Network – SSRN 
  
        It is a collection of papers from the social sciences community. The site offers more than 600,000 full-text papers. 
  URL: https://www.ssrn.com/index.cfm/en/

• PAPERITY
  Paperity boasts being the “first multidisciplinary aggregator of open access journals and papers”. Their focus is helping you avoid paywalls while connecting you to authoritative research.
  URL: https://paperity.org/
  
  
• ECONBIZ
  It is a great resource for economic and business studies. A service of the Leibniz Information Centre for Economics, it offers access to full texts online, with the option of searching for open access material only.
  URL: https://www.econbiz.de/  
  
  
• SEMANTIC SCHOLAR
  It harnesses the power of artificial intelligence to efficiently sort through millions of science-related papers based on your search terms.
  URL: https://www.semanticscholar.org/ 
• ARVIX E-PRINT ARCHIVE
  
  

        The arXiv e-Print Archive has been around since 1991 and is well-known resource in the fields of mathematics and computer science.
  URL: https://arxiv.org/

•      ZENODO Zenodo is a tool that was built and developed by researchers, to ensure that everyone can join in open science 
  URL: https://zenodo.org/