In cooperation of the University of Tartu Library and DataCite Estonia Consortium an international seminar "Open Research Data - the FAIRest Data is the Future of Science" was held. The seminar took place on 20th of April in Tallinn University of Technology. The target group of the seminar was researchers, doctoral students, data managers and research administrative staff who are supposed to preserve and open up their research data. This seminar examined state-of-the-art institutional repositories and common problems, provided networking opportunities and sharing of best practices.