A digital portal to collections of the National Library of China was opened on May 29, providing online search and accession to digitalized resources of the library. As the latest public service platform launched by the library, the D-portal combines 37 Chinese-language data banks, 77 foreign language data banks, 16,000-odd periodicals in both Chinese and foreign languages, as well as special resources including local records, Dunhuang documents, periodicals of the Republic of China (1912-1949) and doctoral dissertation and master's thesis, all purchased or established by the national library