- Aikikai Aikido World Headquarters — The official site for World Aikikai.
- International Aikido Federation — The umbrella organisation for Aikido world-wide.
- Aikido Journal — This site carries a great Encyclopedia on aikido.
- Aikido Shinryukan (National) — The parent organisation of A.S.C., headed by Nobuo Takase Shihan, the head of Aikido Shinryukan and New Zealand Aikikai. Check this site for location and contact details for other NZ Aikikai dojos.
- Marlborough Aikido — Picton Dojo: Established by Ben Schmidt, an ex-student of ASC. Andrew Williamson visits the dojo twice a year to carry out seminars and gradings.
- Aikido Shinryukan Otago — For details of Aikido in Dunedin.
- Aikido Shinryukan Wellington — Aikido in the Wellington area, with dojos in Tawa, Miramar and Central Wellington.
- Club Aikido – Singapore — An aikido group in Singapore. Andrew Williamson is Technical Advisor to Club Aikido.
- The Aikido FAQ — A good background information source on Aikido, plus lots of image resources, aiki humour, and other stuff.