Affiliated with the Royal Yachting Association. Provides an events calendar, technical advice and drawings, FAQs, model specifications, and classified advertisements.

Official owners association site includes events calendar, model specifications, articles, classified advertisements, members' sites and forum.

Informal owners group site. Incorporates model specifications, owner registry, maintenance tips, flotilla information, and members message-board.

Formal, Nautor-recognized, owners association. Provides owners of Sparkman and Stephens designed Swans with news, forum, events, model specifications, technical articles and classified advertisements.

A non-profit organization dedicated to Dickerson sailboats. The site contains classified advertisements, parts supplier information, forum, and newsletter.

An informal owners group site that provides model specifications, owner registry, brochures, parts lists and manuals, photo gallery, events and regatta information, reviews, maintenance tips, classified ads, and links to related forums.

Provides Endeavor owners with manuals, brochures, news, events calendar, member photos, boat specifications, Google Maps boat finder, as well as a forum.

The official owner association, providing class racing rules, model specifications, brochures, regional and international organizational information, photo albums, marketplace, and annual newsletter.

Official owners association site. Presents event information, newsletter archive, model specifications, member registry, magazine articles and reviews, and classified advertisements.

A not-for-profit group offering member forum, classified advertisements, manufacturer brochures, and links to members' personal pages. Members only section features reviews, member roster, and newsletter.