EN
This is the first part of a new series of articles in which independent information experts evaluate some of the most important Hungarian online databanks and other content services relevant to libraries. The survey focuses on the following topics: usability and accessibility of the web interface; features and performance of the search engine; quality and coverage of the content; as well as the availability and format of the metadata. In the current article the authors review three major Hungarian information sources in the field of social sciences. The observations demonstrate the strengths and weaknesses of the products, which will hopefully lead to the further enhancement of the databases by the developers and to their more efficient use by users.