A Beginners'™ Handbook
http://www.aikido-west.org/handbook

AikiWeb: The Source for Aikido Information
http://www.aikiweb.com

Aikido-Related Publications
http://www.aikido.com/publicat.htm

Aikido School Directory
http://www.martialinfo.com/directory/view.asp?id=156

The Aikido FAQ
http://www.aikidofaq.com