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

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

Baidu Scholar aims to become the biggest, most comprehensive research platform in China.

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

Google's mission is to organize the world's information and make it universally accessible and useful.

Access to more than 12 million academic journal articles, books, and primary sources in 75 disciplines.

A global science search engine designed to accelerate scientific discovery and progress by the sharing of scientific knowledge.

Online rental service for scientific, technical and medical research.

Semantic Scholar helps researchers find better academic publications faster

A single discovery search engine for print and digital library resources.