| 2002-11 -- (current) | International Conference on Asia-Pacific Digital Libraries | Steering Committee / Chair |
| 2007-09 -- 2019-06 | Joint Conference on Digital Libraries (JCDL), Steering Committee | |
| 2011-02 -- 2012-03 | 総務省 | 知のデジタルアーカイブ研究会 |
| 2010-12 -- 2012-03 | 文化庁 | 電子書籍の流通と利用の円滑化に関する検討会議 |
| 2010-07 -- 2014-06 | 内閣府 | 公文書管理委員会／委員 |
| 2008-12 -- 2017-11 | Consortium of information Schools in Asia-Pacific/Chair | |
| 2002 -- (current) | Dublin Core Metadata Initiative | Governing Board / member |