Bicycle Helmet Safety Institute: Teaching your Child to Ride a Bicycle
   A BHSI article with a focus on safety.
   http://www.bhsi.org/kidteach.htm

Bicycle Science - Rainbow Trainers, Inc
   Describes phases of learning to ride a bike, issues of stability, and references for further reading.
   http://www.rainbowtrainers.com/

Bicycling for Beginners: Learning to Ride
   Advice for beginners on starting to ride a bike.
   http://www.bicyclingforbeginners.org.uk/learn.htm

BikeSense
   The British Columbia Bicycle Operator's Manual, this globally applicable manual gives practical tips on how to ride your bike in urban environments.
   http://bikesense.bc.ca/

Teaching Kids to Ride
   Article by Sheldon Brown that discusses the finer points of teaching children how to ride a bicycle.
   http://www.sheldonbrown.com/teachride.html