academic search engine for students and researchers. locates relevant academic search results from web pages, books, encyclopedias, and journals.

download over 80 million free science papers, patents, theses and posters

jstor is a digital library of academic journals, books, and primary sources.

worldwidescience.org is a global science gateway accelerating scientific discovery and progress through a multilateral partnership to enable federated searching of national and international scientific databases.

doaj is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.

leading the information highway

a no-nonsense reference collection and bibliography creation tool for people who value simplicity, privacy, and speed.

the first pirate website in the world to open mass and public access to tens of millions research papers

sci-hub,mg.scihub.ltd,sci-hub.tw,the project is supported by user donations. imagine the world with free access to knowledge for everyone ‐ a world without any paywalls.

homepage of emil o. w. kirkegaard. sciency person with diverse interests.