Eestlased Esimeses maailmasõjas (Estonians in the First World War)
A crowd-sourced project organized by the Estonian National Archives to gather information on the 100,000 Estonians who fought or otherwise participated in the First World War. The website is in Estonian.
Estonian Film Archives
More than 600 archives have registered and digitized their material. The growing archive contains over 275 000 film, photo, and video sources.
Fotis, Rahvusarhiiv, The National Archives of Estonia
The photographic database of the National Archives of Estonia. Website available in English and Estonian, records in Estonian.
Operacja Lodzka 1914
A project of the Polish town Lodz to bring together resources (including maps and images) showing the history of Lodz during the autumn of 1914 and the battles (the “Great Battle”) fought between the German and Russian armies around Lodz. Website is available in Polish and English, and to a lesser extent in German, Russian, and French.