Major sites about the Holocaust:

Cybrary of the Holocaust

Nizkor Project

Fortunoff Video Archive for Holocaust Testimonies

Survivors of the Shoah Visual History Foundation

Simon Wiesenthal Museum of Tolerance

Yad Vashem

Women and the Holocaust

Holocaust Survivor Remembrance Project

German websites about the Holocaust:

shoa.de

shoahproject

Fritz Bauer Institut

Topography of Terror

Aktion Suehnezeichen (Action for Reconciliation)

Personal websites by survivors or the second generation:

Filmmaker Abraham Ravett

Zabludow Poland Memorial Website

Ada Holtzman

Lucille Eichengreen