Online catalogue with descriptions of all newspapers in the KB collection. Find information about articles in national and international newspapers, news magazines and daily local newspapers published from 1640 to the present day. From the Algemeen Dagblad to the Zwolse Courant. For researchers.

Online catalogue with approximately 585,000 descriptions of individual letters and parts of correspondence written in the early-modern and modern period (ca. 1500 - present). Contains information about more than 2 million letters. The letters come from the collections of Dutch heritage institutions, including the KB. For researchers.

Online catalogue with descriptions of books, magazines and microfiches about music and sheet music from classical antiquity to the present day. Part of the collection can be checked out on loan. Contains codes to search for different instrumentations, for example for “string quartets”. For researchers and Dutch music enthusiasts.

Online catalogue of 17 Dutch and Flemish institutions (including the KB) with more than 300,000 descriptions of mainly Dutch-language children's books, magazines and catchpenny prints from the 16th century to the present day. Also contains approximately 70,000 descriptions of articles and books that reflect on children’s literature. For the researcher of children's books.

Online edition of the Algemene Nederlandse Spraakkunst (General Dutch Grammar). Includes as complete a description of Dutch grammar as possible. Search the rules for words, sentences, phrases, juxtapositions, contractions and more. For researchers and for those who are interested in Dutch as a native language or as a second language.

Catalogue with more than 480,000 descriptions of all (mainly English language) books, newspapers and magazines printed between 1473 and 1800, particularly in the British Isles, United States and Canada. More than 2,000 libraries, including The British Library, contribute to this bibliography. Resource for historical research.

Website for everything about European Union law. Contains treaties, legal acts, agreements, legal and regulatory procedures, case law and much more. Updated daily and available in all 24 official languages of the EU. Very interesting resource for anyone looking for EU documents.

Website with more than 50,000 digitized artworks, books, artefacts, videos and music from the collections of 3,500 European museums, libraries, galleries and archives. New content is added regularly. Interesting for researchers and lovers of music, art and literature.

Database of bibliographic descriptions of publications on human influence on the environment. Contains scientific articles, government publications and general works on global warming, sustainable agriculture, recycling and renewable energy, among others. Useful for anyone interested in developments around people and the environment.

International bibliography of European books printed between 1450-1500 (incunables). Contains information about author, printer and publishing date of more than 30,000 works. Also with information about the location and the number of known remaining copies. Including links to online facsimiles where possible. For (future) book scholars.