A unique search tool, helping you to find free academic articles and books

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

A visual interface to the world’s scientific knowledge.

Semantic Scholar helps researchers find better academic publications faster

Transform your R&D with the industry's most widely adopted Life Sciences R&D Cloud.

Browse recent arXiv papers based on semantic similarity.

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

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

An online information resource on the distribution & classification of fossil animals, plants, & microorganisms.

MetaLib conducts simultaneous searches in multiple, heterogeneous information resources.