Kanto Computer Calendar
- Event listing for English language computer club meetings as well as computer, internet, and telecommunications exhibitions in the Tokyo area.
- http://www.onjapan.net/cgi-bin/calendar.cgi

International Computer Association
- Forum that enables professionals to exchange business-related technology news and provides members an opportunity to meet each other.
- http://www.icajapan.jp/

Tokyo Linux Users Group (TLUG)
- User group for the Linux operating system. Includes calendar, archives, and membership details.
- http://www.tlug.jp/

Ringo Mac User's Group
- An English language Macintosh User Group in Tokyo.
- http://www.ringo.net/

CODE-J: Content Developers of Japan
- A non-profit organization where content developers in Japan can exchange ideas, and network on both professional and social levels.
- http://www.codej.org/

Tokyo PC Users Group
- Japan's largest English-speaking personal computer club, with a particular interest in bilingual personal computing.
- http://www.tokyopc.org/