ViFaOst is a scientific web portal that provides extensive specialist information on the history, culture, politics and society of the states and regions of Eastern Europe. While history has been the site's main focus to date, the other subject areas will be extended substantially within the coming year and a half. A variety of research tools provides easy access to a wide range of information on the most recent literature, bibliographies, annotated internet resources, primary sources, full texts and other materials of interest.

ViFaOst is a joint initiative of the Bavarian State Library, the Department of East and South-East European History at Munich's Ludwig Maximilian University, the Munich-based Osteuropa-Institut and the Herder Institute in Marburg. It is sponsored by the German Research Foundation (DFG).