PurposeThe purpose of the paper is to present a progress report on the building of a digital archive of electronic journals by the Korean Electronic Site License Initiative (KESLI) of the National Digital Science Library in Korea.Design/methodology/approachThe research involves identifying a system architecture, testing its prototype, deciding journal selection criteria and priority publisher selection criteria, and defining metadata sets.FindingsThe paper finds that production system and archiving system models are being implemented and tested. Implementation of the delivery system module is in progress. Preservation strategies will be identified.Practical implicationsThe KESLI electronic journal digital archive project is proceeding toward completion of its tasks by the end of 2007.Originality/valueThe observations and lessons in the paper provide insights into building a digital archive of electronic journals that can be used as a basis for building similar digital archives in other countries.