Online Repository for accessing full academic articles and research papers completely free of charge is :

The correct answer is - Researchgate

Key Points

• Researchgate
  • ResearchGate is a professional network for scientists and researchers.
  • It allows users to access and share academic publications for free.
  • Users can upload their own research papers and access those uploaded by others, facilitating knowledge sharing.
  • It is a widely-used platform in the academic community for collaboration and access to research.

Additional Information

• JSTOR
  • JSTOR provides access to thousands of academic journals, books, and primary sources.
  • However, it is not completely free; access usually requires a subscription or is provided through educational institutions.
• PubMed
  • PubMed is a free resource developed by the National Center for Biotechnology Information (NCBI).
  • It provides access to a vast database of biomedical and life sciences literature.
  • While the abstracts are free, full-text articles may not always be freely accessible.
• Google Books
  • Google Books is a service from Google that searches the full text of books and magazines.
  • It provides access to a vast collection of digitized books, but not all content is freely available.
  • Full access to some books might require purchase or be restricted to previews.