The Channel Swimming Association Ltd.
http://www.channelswimmingassociation.com

Channel Swimming .com http://www.channelswimming.com/home.html

Catalina Swimming Federation
http://www.swimcatalina.org

NYC Swim
http://www.nycswim.org

Outdoor Swim Society:  http://www.outdoorswimmingsociety.com/  

Open Water Swimming in Europe:  http://openwaterswimming.eu

Endurance News Network: http://www.endurancenews.net  

Open Water Guide to South Africa:  www.swimmersguide.co.za

http://www.10kswimmer.com/

Strel Swimming Adventures:  http://www.strel-swimming.com/   

Simply Swim, Swimwear Store:  http://www.simplyswim.com/