It's impossible to keep up with the rapid growth rate in websites dedicated to or associated with the sport of racewalking. The following list should be seen as a representative sample of what's out there rather than as a definitive list. I welcome any new additions - email me at terick@melbpc.org.au and I will add your site.
This first one is not a walking site but is shows what can be
done
in a sporting context. Definitely one of the most comprehensive sites
for
beginners in a sport that I have seen - and it is triathlon -
compliments of Tracy, Lucas and Avery at https://slccn.org/.
Next a super running site, compliments of Corrine and Anna and their runners club in Rutland, Vermont (USA). It covers everything from where to sign up for races, the best apps for running training, running mags and forums, etc.
Thanks to Susan and her kids Jay and Michelle for pointing me to this very comprehensive page about running shoes (and walking shoes). Lots of good links to further articles as well.
Thanks to Annie and Nick for this website which contains lots of good info on running and running resources