WG 5 aims to negotiate principles and standards of data exchange as well as plans for digitizing and making freely accessible learned correspondence from the early modern period. Building on the survey of collections of printed and manuscript letters, inventories, and finding aids undertaken in WG 4, WG 5 will develop a master plan for a joint digitization program. In addition, the WG will address issues of Open Access and legal restrictions, content syndication (e.g. to EMLO, Europeana, etc.), the development of worldwide unique persistent identifiers for letter, the connecting letters through semantic web techniques, and the long-term archiving of digitized letters.