archive.org

internet archive: digital library of free & borrowable books, movies, music & wayback machine

internet archive is a non-profit digital library offering free universal access to books, movies & music, as well as 624 billion archived web pages.

Monthly Visitors are

Ranked 1^st globally in Science and Education Science and Education

openlibrary.org

open library is an open, editable library catalog, building towards a web page for every book ever published. read, borrow, and discover more than 3m books for free.

Monthly Visitors are 2914557.67495 and Similarity percentage is 60.76.

Ranked 9775^st globally in Science and Education Libraries and Museums

researchgate.net

access 130+ million publications and connect with 20+ million researchers. join for free and gain visibility by uploading your research.

Monthly Visitors are 125882772.172 and Similarity percentage is 52.21.

Ranked 650^st globally in Science and Education Science and Education

yumpu.com

yumpu news – one subscription, hundreds of top magazines! ✓ yumpu publishing – upload pdfs and create a high-quality e-paper ► try it for free now!

Monthly Visitors are 14220845.1925 and Similarity percentage is 48.15.

Ranked 5709^st globally in Science and Education Science and Education

libgen.is

library genesis is a scientific community targeting collection of books on natural science disciplines and engineering.

Monthly Visitors are 10786215.0873 and Similarity percentage is 46.70.

Ranked 4199^st globally in Science and Education Science and Education

semanticscholar.org

semantic scholar uses groundbreaking ai and engineering to understand the semantics of scientific literature to help scholars discover relevant research.

Monthly Visitors are 9204462.86772 and Similarity percentage is 45.69.

Ranked 7533^st globally in Science and Education Science and Education

perlego.com

Monthly Visitors are .

Ranked ^st globally in Science and Education Science and Education