Indexing Languages for Digital Humanities

— This article considers the possibilities of using a specialized taxonomy of digital humanities (DH) as an indexing and search tool for the Digital Humanities Reference and Information System. The application of the Russian State Classifier of Scientific and Technical Information (GRNTI) to the task of describing the topic structure of DH has been tested, with the conclusion that the classifier requires substantial revision in order to be used for this purpose. A typology of DH objects is proposed. A list of DH keywords obtained by indexing an experimental array of DH objects is provided.