With redesig of their services modern libraries fullfill more educational needs and stand as stronger and more important players in area of education, especially virtual education. First part of this paper deals with influence of libraries on educational processess and quality of e-learning and distance learning. Second part presents "Virtual classroom", a project of National and University Library, Zagreb, Croatia. Reasons for development of this program as well as its content and new services are described. National and University Library has started its way towards online education but other possible services and ways of interaction among library and information systems and online educational processes needs to be considered.