The Archaeology Data Service (ADS) is an open access digital archive for archaeological research outputs. It is located in The King's Manor, at the University of York. Originally intended to curate digital outputs from archaeological researchers based in the UK's Higher Education sector, the ADS also holds archive material created under the auspices of national and local government as well as in the commercial archaeology sector. The ADS carries out research, most of which focuses on resource discovery, cross-searching and interoperability with other relevant archives in the UK, Europe and the United States of America.