Indoor

Artistic Cycling
Features an overview of the sport, along with diagrams of the bicycles used, bike specifications, and types of tricks and moves performed.
http://www.cycle-info.bpaj.or.jp/english/ride/ff.html

Indoor Cycling in Hong Kong
Features results of recent championships, training schedule, details on the Artistic Star Award Scheme presented by the Hong Kong Cycling Association, photo gallery, and links. [English, Chinese]
http://www.hk-icycling.net/

Wikipedia: Indoor Cycling
An explanation and introduction to spinning.
http://en.wikipedia.org/wiki/Spinning_%28cycling%29