If you want to post an ad then I guess it may be worth it. I joined a few months ago to sell my old boat, but I didn't get any responses from it. Generally I would say that YBW.COM is better content wise. (IMHO)
Excellent, if you're interested in racing. Concentrates on "higher-end" racing, things like the America's Cup, Route du Rhum etc. No forums, but occasional replies from subscribers printed.
Basically, if you read/subscribe to Seahorse or Yachts and Yachting, you might well like it.
-Ed
I have no financial involvement with the site, but am an avid reader.