- Maps, events, Osaka attractions, and links to other Osaka tourism pages. Maintained by the city of Osaka. English, Chinese, Korean, Japanese.www.tourism.city.osaka.jp/en
- Since July 20.1998 opc@optc.or.jp Osaka City Homepage Page Designed for IE 3.0 or later ...www.optc.or.jp
- www.osakafu.org