February 15, 2010
Lambert, Rose: Hadjin, and the Armenian Massacres
Stuermer, Harry: Two War Years in Constantinople

May 5th , 2008
Treatment of Armenians in the Ottoman Empire by Viscount Bryce: collection of documents and eye-witness accounts from 1915 about the genocide of Armenians and Assyrians in the Ottoman Empire.

April 13, 2008
British Diplomacy and the Question of Western Armenians by Dr. Arman Kirakossian (in Armenian).

August 11, 2006
Added three articles about the Armenian question written by Nikoghayos Adonts in 1918–20 (in Armenian).

July 27, 2004
Published online Turkey and the Armenian Atrocities by Edwin Munsell Bliss (originally published in 1896). Until now this book is considered to be the most accurate and full description of the Hamidian massacres of 1894-1896 by a Western traveler.

Also published the Report of the American Military Mission to Armenia by Major General James G. Harbord. It was presented to the U.S. Senate in 1920 and contained a detailed review of situation in Turkish Armenia and Transcaucasia after World War I.

Adonts, Nikoghayos (in Russian)
Akcam, Taner (in Russian)

Barseghov, Yuri (in Russian)
Barton, Clara
Bliss, Edwin Munsell
Bryce, James

Dashtents, Khachik (also in Armenian | in Russian)

Gibbons, Helen Davenport

Harbord, James G., Major General
Harris, Helen B.
Harris, Rendel J.

Kirakossian, Arman (in Armenian)
Kirakosyan, John (in Russian)
Khanzadyan, Sero (also in Russian)

Lambert, Rose

Mahari, Gurgen (in Russian)

Nansen, Fridtjof (also available in Russian)

Stuermer, Harry

Wegner Armin (also in Armenian | in Russian)
Werfel Franz (in Russian only)

The Armenian Genocide Museum-Institute
Armenian national institute
FAQ on the Armenian Genocide by Dr. Dennis R. Papazian, a must read.
Genocide.ru - the largest Russian-language web site about the Genocide. Contains documents, maps, photographs and also poetry.
Genocide1915.info — research, videos, photographs, news.
Ermeni Sorunu - Armenian Question (in English, Turkish, Armenian and French)
IMPRESCRIPTIBLE - Le génocide arménien, crime imprescriptible
Armenocide.de - Documents from German State Archives (in English and in German)
OurArarat.com - Photos, videos, documents. Pay attention to the collection of 1915 articles from the New York Times (in English and Farsi)