Das Portal Blavatnik Archive enthält über 100’000 digitalisierte Materialien, darunter viele Egodokumente mit Schwerpunkt auf die jüdische Geschichte des 20. Jahrhunderts sowie den Ersten und Zweiten Weltkrieg in Russland und der Sowjetunion (via FID Ost-, Ostmittel- und Südosteuropa):
«The Blavatnik Archive is a nonprofit foundation dedicated to preserving and disseminating materials that contribute to the study of 20th-century Jewish and world history, with a special emphasis on World War I, World War II, and Soviet Russia. The Archive was founded in 2005 by the American industrialist and philanthropist Len Blavatnik to reflect his commitment to cultural heritage and expand his support for primary-source-based scholarship and education. Primarily through its metadata-rich, item-based website, the Archive shares its holdings as widely as possible for research, education, and public enrichment.
Following an initial acquisition of 10,000 Judaica-themed postcards and 74 posters in 2005, the Archive has substantially expanded the thematic scope of its holdings. Major additions were made through the Veteran Oral History Project (2006–2014) and through the 2014 acquisitions of 52,000 World War I postcards; 22,000 National Socialist Party ephemera; 5,000 World War II ephemera; and 1,300 Leningrad Siege postcards. Currently the Archive comprises over 113,000 items across 15 collections, including video testimonies, postcards, photographs, posters, drawings, illustrations, diaries, letters, state-issued documents, leaflets, periodicals, and books.»