Wikipedia: Yakuza
- Article describes the history, rituals and activities of the ethnic Japanese criminal society.
- http://en.wikipedia.org/wiki/Yakuza

Japanese Organized Crime in Australia
- Excerpt of a 1995 discussion paper by the Australian Parliamentary Joint Committee on the National Crime Authority dealing with the history, characteristics and activities of the Yakuza
- http://www.fas.org/irp/world/australia/docs/ncaaoc4.html

Crime Library: Yakuza, the Japanese Mafia
- Writer Anthony Bruno tells of the powerful and far reaching Japanese and Korean criminal enterprise.
- http://www.crimelibrary.com/gangsters_outlaws/gang/yakuza/1.html

The Japanese Mafia, Yakuza
- Site explores the history, organization and practices of Japan's Yakuza organized criminal entities.
- http://web.telia.com/~u31302275/yakuza.htm