ResearchGate is the professional network for scientists and researchers.

Public search engine and digital library for scientific and academic papers.

Search Engine for Scientific Publications

Online rental service for scientific, technical and medical research.

Mendeley is a desktop and web program produced by Elsevier for managing and sharing research papers, discovering research data and collaborating online.

scite is a platform for discovering and evaluating scientific articles via Smart Citations. Smart Citations allow users to see how a scientific paper has been cited by providing the context of the citation and a classification describing whether it provides supporting or disputing evidence for the cited claim.

A service to help the academic community find academic content, researchers, and more.

A website that hosts a community-curated list of open access journals.

Access to major journals in the biomedical and related social sciences fields.

An online reference management tool that collects, manages to refer associated PDFs