The resources below are starting points for further research. A link does not mean that Holocaust.co.il owns or may republish the material found there. Rights and citation requirements must be checked for each individual photograph, document, recording or database record.
Core Holocaust research institutions
United States Holocaust Memorial Museum — Holocaust Encyclopedia
A broad, editorially reviewed reference resource covering people, places, events, documents, photographs, maps and testimony.
Open the Holocaust Encyclopedia
Yad Vashem
Israel’s World Holocaust Remembrance Center, with historical research, exhibitions, educational material, testimony, names and archival collections.
Victim, survivor and family research
Yad Vashem Collections
Search names, Pages of Testimony, photographs, documents and other collection material.
Arolsen Archives — Online Archive
A major collection on Nazi persecution, forced labor, concentration camps, displaced persons and postwar tracing.
USHMM Collections Search
Search archival collections, photographs, oral histories, films, objects and other holdings of the United States Holocaust Memorial Museum.
Camp and killing-site institutions
Auschwitz-Birkenau Memorial and Museum
Official historical and memorial institution at the former Auschwitz camp complex.
Open Auschwitz-Birkenau Memorial and Museum
Treblinka Museum
Official museum and memorial resources for Treblinka I and the Treblinka II killing center.
Museum–Memorial Site in Bełżec
Historical and memorial resources for the Bełżec killing center.
Sobibór Memorial Site
Historical and memorial resources for the Sobibór killing center and prisoner revolt.
Open the Sobibór memorial site
State Museum at Majdanek
Research and collections relating to Majdanek and associated memorial sites.
Documents and trial records
The National Archives, United Kingdom — Holocaust educational resources
Digitized British records and educational collections, including the Höfle Telegram and other wartime documentation.
Harvard Law School — Nuremberg Trials Project
Digitized trial documents, transcripts and evidence from the Nuremberg proceedings.
Open the Nuremberg Trials Project
Jewish Historical Institute, Warsaw
Research and collections on Polish Jewish history, including the Ringelblum Archive.
How to use sources responsibly
A source should be evaluated for what it can actually establish. A deportation list may document transport but not necessarily a person’s final fate. Survivor testimony can preserve experiences that do not appear in perpetrator records, while memory can also contain uncertainty in dates or sequence. Perpetrator documents may be precise about logistics while using euphemisms to conceal murder. Demographic estimates are often essential where complete individual records do not survive.
The strongest conclusions usually come from convergence: different kinds of independent evidence pointing to the same historical finding.