LexiQamus is a reference work and online tool for identifying and analyzing illegible words from Ottoman-Turkish texts. It can even be used to search for the recognisable parts of a word. Based on over 170,000 words and phrases from 19 different dictionaries, LexiQamus comprises the entries of the reference work "A Turkish and English lexicon" (1890) by James Redhouse and all content from the website osmanlicasozlukler.com which collects entries from Ottoman dictionaries.

The database OLC Ibero-America, Spain and Portugal is a regional related section from the Online Contents database that is constantly being completed with the addition of selected journals from the competent Libraries, the Library of the Ibero-American Institute Prussian Cultural Heritage (Ibero-America and the Caribbean) and the state and university library SUB Hamburg (Spain and Portugal). Currently more than 1.400 journals are being indexed. Gradually earlier editions of these journals will also be made accessible.

The database comprises numerous important periodicals published since 1997 in the Baltic States (Estonia, Latvia, Lithuania), Belarus, Moldova and Ukraine. It includes journals as well as neswpapers which are mostly in Russian and cover various issues of domestic and international importance.

The world's first database of newspapers and magazines of Ukraine (UDB-UKR) includes publications in Russian, Ukrainian, and English. They cover a broad range of political, economic, and cultural affairs of Ukraine. Topics include Ukraine's progress along the reform path, the view and positions of various political forces, changes in legislation, ethnic relations, and organizational trends in development of the armed forces. The database also includes news wire reports and other products of Ukrainian news agencies. An integral and unique part of this database is the Ukrainian Book Chamber's editions, which list everything published in Ukraine with detailed bibliographic description.

Based on the digitization of K. G. Saur's Biographical Archives, WBIS Online provides biographical information on over 6 Million people from the 8th century B.C. to the present as well as from all countries and regions worldwide. The subscription covers all biographical archives, except the German Biographical Archive, DBA.