The digital collection First World War Volunteers British Red Cross has been created in 2016 by the British Red Cross with the help of the general public. The database contains the records of some 90,000 volunteers who served in the United Kingdom and on the European continent. You can search the database for individuals using their forenames, last names, locations and hospitals, duties and/or roles. There are special pages for famous volunteers, and some aspects of the work volunteers did is highlighted, too, for example sending food parcels to British prisoners of war. You can contribute to the database with new or corrected information. The interface of this database is English.
The digital collection Belgen Gezocht [Searching Belgians] has been created by the Archief Eemland in Amersfoort, The Netherlands. This regional archive has digitized photographs, a newspaper and family registers about some 19,000 Belgian refugees who came to Amersfoort in 1914. 16,000 Belgian soldiers were brought to Camp Zeist. The newspaper De Kampbode [The Camp Messenger] has been completely digitized (1915-1918). The family cards are partially still being transcribed and processed as part of Vele Handen [Many Hands], a Dutch crowdsourcing project for indexing and transcribing online archival records. The collections are accompanied by six virtual exhibitions about particular locations, among them the project for the monument commemorating the Belgian presence in and around Amersfroot. The website can only be viewed in Dutch.
The digital version of the Kriegstagebuch Fridolin Mayer is an initiative of the Erzbischöfliches Archiv, Freiburg im Breisgau. Mayer (1877-1956) was a Catholic priest who served as a volunteer at several front locations in France. In 1918 he served briefly as a chaplain for prisoners of war in Switzerland. The archdiocesan archive at Freiburg holds the original manuscript (EAF Ha 595) and a typescript made in 1927 (EAF Na 16/1). The diary entries are published in blog fashion in chronological order. For each day of the diary a post will be created. The digital version is only accessible in German.
The digital collection Notulen van de ministerraad [Cabinet minutes] is a project of the Belgian National Archives (Algemeen Rijksarchief/Archives de l’État en Belgique) in Brussels. This digital collection contains digitized photocopies (PDF) of cabinet notes made between 1917 and 1979. Only in 1917 the Belgian cabinet decided to start creating notes. In principle the cabinet was convened every week, but when necessary the ministers met more often. You can either choose to search the full text of the notes or find notes of a particular meeting using the chronological overview. The languages of the notes themselves is either in Dutch or French. Apart from the Dutch interface you can also use the French interface to access the Procès-verbaux du Conseil des Ministres.
The virtual exhibition Første Verdenskrig 1914-1918 [First World War 1914-1918] has been created by Det Kongelige Bibliotek in Copenhagen, the Danish national library. This virtual exhibition has been launched to accompany the exhibition Ned med våbnene [Away with weapons] at Det Kongelige Bibliotek (September 4, 2014-January 31, 2015). The focus of the virtual exhibition is on seven very different persons: a politician, a soldier, a woman active in the peace movement, an interpreter working with prisoners of war, a union leader, a socialist and an intellectual. Each of them is briefly portrayed, and you can look at telling images or listen to spoken versions of some of their writings. This virtual exhibition can only be viewed in Danish.
The Danish national library contributes digitized materials concerning the First World War mainly to Europeana Collections 1914-1918. You can find these materials also using this overview which bring you to some 700 books (bøger), nearly 900 pamphlets (småtryk), 6600 images (billeder) and 180 maps (kort). You can choose between an interface in Danish or English. Some digitized Danish and Norwegian literature from the First World War held at Det Kongelige Bibliotek is accessible at The European Library portal.
The digital collection Prisoners of the First World War has been created by the International Committee of the Red Cross (ICRC). This collection contains digitized archival records about some 10 million prisoners of war during the First World War, mainly in Europe, but also in Russia, the Near East, India and Japan. The belligerent countries sent lists of prisoners to the ICRC. These lists were organized in alphabetical indexes which have been digitized for this project. You can search here individual persons, but also look at information about the internment camps, in particular from official inspection reports, browse postcards of the ICRC concerning the camps, and read letters about prisoners sent to the ICRC. Among the examples of information about prisoners is the archival record for captain Charles de Gaulle. The collection is accessible in English and French.
The digital collection Mesopotamia Photographs has been created by Gerard Bugler. He has digitized some 300 photographs taken in Mesopotamia between 1915 and 1919 by captain Charles Henry Weaver who worked with the Red Cross. The digital collection can be viewed in sets ordered by cities and themes. The site contains additional information about cities, some digitized texts and background information about captain Weaver.
This website and other online materials about Mesopotamia during the First World War are presented in a very useful overview at War Letters 1914-1918.