95 articles
Wayback Machine
Wayback Machine, the Internet Archive's free public web archive (web.archive.org), founded by Brewster Kahle in 1996, crawls sites into WARC files with CDX indexes; over 866 billion pages, Memento-compliant, used in law, journalism, and research.
Widener Library
Widener Library (Harry Elkins Widener Memorial Library) is Harvard University's flagship library in Harvard Yard, opened 1915. Funded by Eleanor Elkins Widener for her son Harry, a 1907 graduate who died on the Titanic; designed by Horace Trumbauer's firm with Julian Abele.
Wikimedia Commons
Wikimedia Commons (Commons) is the Wikimedia Foundation's free, multilingual media repository of over 100 million public-domain and Creative Commons photos, audio, and video, reusable with attribution and used across all Wikimedia projects.
Wikisource
Wikisource, the Free Library, is the Wikimedia Foundation's sister project to Wikipedia: a volunteer-run, multilingual digital library of public-domain and freely licensed source texts, proofread page by page against scans using the Proofread Page extension since 2008.
Z-Library
Z-Library (B-ok) is a shadow library offering free pirated e-books and articles since 2009, claiming over 11 million books. US authorities seized about 249 domains in 2022 and charged operators Anton Napolsky and Valeriia Ermakova, who escaped house arrest in 2024; mirrors persist.