Аннотация:This paper presents main principles and overall structure of linguistic databese of electronic encyclopaedia for Russian (EER). The EER is intended for several kinds of users (e.g., for researchers, teachers and students in the field of Russian; for forensic phonetics experts as reference expert system on the domain of theoretical and practical knowledge of Russian). The linguistic information (lexical, phonetic, syntactic, semantic and other features) builds the basis of knoeledge. Every semantic field includes a set of subfields with texual definitions of every subkeyword. All blocks of the EER are connected by means of hyper-test technology and made as a Help-file possessing all the properties and advantages of Windows Winhelp systems. The new version of the EER bases on integration of diverse kind of knowledge about language, spoken language (speech) and applied domain. This version shows new possibilities to integrate different knowledge sources (theoretical, experimental, perceptual, acoustic, etc.).