Yad Vashem was established in Jerusalem in 1953. Its mission to document, commemorate and preserve all aspects of the Holocaust and its victims for the education and research needs of present and future generations has continued for almost 60 years. In addition to the central archives in Jerusalem, a number of national support organizations, including the AMERICAN SOCIETY FOR YAD VASHEM, assist in collecting and documenting materials for the Yad Vashem collections.
Regarding survivor testimonies, selected videos from The Voice of the Survivors collection are accessible on the web as are testimony documents (letters, diaries, interview summaries, etc.) from the Holocaust Survivors segment of the Yad Vashem Holocaust Resource Center. Yad Vashem also maintains a YouTube Channel with hundreds of survivor accounts from their archives.
The American Society for Yad Vashem publishes a newsletter, Martyrdom & Resistance, documenting projects and activites in the United States to collect and preserve survivor testimonies and other Holocaust-related materials.
Between 1994 and 1999, the Survivors of the Shoah Visual History Foundation -- now the USC Shoah Foundation Institute -- interviewed nearly 52,000 survivors and other witnesses of the Holocaust. The Institute interviewed Jewish survivors, homosexual survivors, Jehovah's Witness survivors, liberators and liberation witnesses, political prisoners, rescuers and aid providers, Roma and Sinti (Gypsy) survivors, survivors of Eugenics policies, and war crimes trials participants. A small selection of these testimonies can be viewed on the USC Shoah YouTube channel. The complete archive of these testimonies, which were videotaped in 56 countries and in 32 languages, can be viewed at the Rockefeller Library, Brown University which has a locally cached copy of the USC Shoah Foundation Institute Visual History Archive.