Lithuanian Data Archive for Humanities and Social Sciences (LiDA) is a national digital social science and humanities data service making it possible to search, browse, analyse and download empirical data. LiDA contains social survey data, historical statistics and data about Lithuanian political system. LiDA is responsible for acquisition and dissemination of national and international data sets, data access to international data archives, national and international data analysis and methodological training, publication of data analysis teaching and learning materials. Data archiving is based on the NESSTAR system and FEDORA repository. LiDA services also are available through the catalogue of the Lithuanian Virtual Library (LVB). All metadata are bilingually documented in English and Lithuanian. LiDA a service provider for the Consortium of European Social Science Data Archives (CESSDA AS). LiDA was established in June 2006 and its first phase of development was funded from EU Structural funds. The second phase of the LiDA development was funded by the Lithuanian Ministry of Education and Science and EU Structural funds.