Digital National Library of Serbia would present a parallel virtual library to the physical one, the true National Library of Serbia “without walls”.  That library would offer access to the heterogeneous information resources as OPAC catalogues, online and offline databases, digitized book and non-book materials, e-books. We plan to organize a number of digital collections with the system of metadata. The goal of DNLS is to open our cultural treasure to the worldwide users, including it in a world’s cultural heritage concentrated in Cyberspace.