The Center for Holocaust Humanity Education

United States Holocaust Memorial Museum: The United States Holocaust Memorial Museum is America's national institution for the documentation, study, and interpretation of Holocaust history, and serves as this country's memorial to the millions of people murdered during the Holocaust.
Simon Wiesenthal Center: The Simon Wiesenthal Center is an international Jewish human rights organization dedicated to preserving the memory of the Holocaust by fostering tolerance and understanding through community involvement, educational outreach and social action.
Yad Vashem: the Holocaust Martyrs' and Heroes' Remembrance Authority
Ghetto Fighters' House: Holocaust and Jewish Resistance Heritage Museum, Israel
Nizkor Project: Site dedicated to Holocaust Revisionism
Cybrary of the Holocaust: Remember.org shares art, discussion, photos, poems, and facts to preserve powerful memories, like A Survivor's Prayer.
Holocaust Teacher Resource Center: Educators, (kindergarten through college) will find at this site materials which can be brought into the classroom and studied.
The Anne Frank Official Website: The mission of the Anne Frank Center USA is to educate the public, especially young people, about the causes, instruments, and dangers of discrimination and violence through the story of Anne Frank.
Anne Frank Educational Trust: The Anne Frank Educational Trust UK (AFETUK) exists to promote and use Anne Frank's diary as a force for good by helping to educate young people against prejudice, bigotry, antisemitism and racism.
The Holocaust: Crimes, Heroes, and Villains: The Holocaust with stories of crimes, heroes and villains started 1996, based on essays and 30 year's research into WW2 and the Holocaust.
Auschwitz: Exhibition on Auschwitz
An Auschwitz Alphabet: Learn about Auschwitz one letter at a time
Images from the Holocaust: Each poster of the exhibition contains one picture, a comment on it and the source.
Nuremberg War Crimes Trials (an advanced site): These documents are here to study, to learn but especially to ensure that we never, never forget.
FAQs on Holocaust Revisionism (an advanced site): Layman's guides on Holocaust Revisionism
The Holocaust History Project: The Holocaust History Project is a free archive of documents, photographs, recordings, and essays regarding the Holocaust, including direct refutation of Holocaust-denial.
The Forgotten Camps: Site about the little, unknown concentration camps
Candles Holocaust Museum: Its purpose is to educate the public about the horrors of the holocaust and to tell the story of the childeren who survived. Further, visitors learn about the experiments twins were forced to endure.
War Crimes: American Prosecutions of Nazi Military Officers (an advanced site)
Jewish Virtual Library: Division of the American-Israeli Cooperative Enterprise
A Teacher's Guide to the Holocaust from The Florida Center for Instructional Technology: An overview of the people and events of the Holocaust through photographs, documents, art, music, movies and literature.
Facing History and Ourselves: Facing History is an international non-profit organization that works with educators across educational settings to help their students connect lessons of the Holocaust to lessons of human behavior.
Survivors of the Shoah: The Shoah Foundation has an excellent website, including three informative online exhibits.