Papers helps you collect and curate your research material.

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

A free, all-in-one online software platform for DNA design.

Aims to enable everyone to perform research.

Aggregator of open access research papers for researchers and repositories.

Online collaborative writing, citing, hosting of data and publishing.

Search metadata records for journal articles, field-specific, for software.

Article recommendation and literature discovery service in biology and medicine.

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.

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