This section is not intended to be any sort of "list it if it floats" directory.
The selections arise from my prejudices.
The list will doubtless grow. Let's start small. Let's not worry (yet) about where to stop.
The Irish Sailing Association (ISA) "Representing leisure boating activities on the Island of Ireland. - Governing Body of sail & powerboat racing and training through affiliated clubs and Recognised Training Establishments."
The Royal Yachting Association (RYA) is the source for the UK.
US Sailing "is the National Governing Body (NGB) for the sport of sailing and sailboat racing in the United States"
Resources and Directories
Sailnet keeps coming up with interesting articles. It's big, It's good.
The Sailing Source has a good Resources section.
The Sailing section of About.com may keep you occupied for some time. The site contains articles in addition to the external links.
The UK Sailing Index aims to "bring you the consummate list of UK and Eire based sailing related web sites".
There's more .... but I'll have to add things in dribs and drabs. I need to have a life :)