Kokikai Aikido International
This is the official page of Kokikai Aikido.

Kokikai Aikido of Philadelphia
Kokikai Aikido website of U.S. Kokikai Headquarters Dojo - Philadelphia.

Aikiweb
A well-designed page that hosts various information on the martial art aikido. Includes a dojo search engine.

Aikido FAQ
Site that provides answers to many popular questions pertaining to aikido. Includes informative articles as well.

Peaceful Warrior Systems
Umbrella organization pioneered by Tony Kraemer for both Kokikai Aikido and Commando Krav Maga.