Tasar Europe
- News, past and future events, classifieds, registry.
- http://www.hayenterprises.nildram.co.uk/tasar/

Chesapeake Catboat Association
- Includes information about the organization, races/rendezvous, events, history and catboat links. Affiliated with the National Catboat Association.
- http://www.chesapeakecatboats.org/

National Rebel Association
- Information on the Rebel Sailboat Class, including its history (going back to 1950), upcoming races, results, and contact information.
- http://www.rebelsailor.com/index1.html

British International Eight Meter Association
- Offers history, rules, regatta information and photographs.
- http://www.8mr.org.uk/

Manly Junior Sailing Association of Australia
- Offers training, photos, calendars and news.
- http://www.manlyjunior.asn.au

Contessa 32 Association
- Latest information on racing, cruising, crew opportunities, and input from the boat builders in Lymington UK, as well as association news, constitution, and membership information.
- http://www.co32.org

International Eight Metre Association (8mR)
- Organizational, regatta, and general class information, including boats register and news.
- http://www.8mr.org/

Chicago One Design Sailing
- Lightning Fleet 5 race schedules and results, contacts and costs. Lightning racing at Chicago's Montrose Harbor.
- http://www.corinthian.org/lightning

The Catboat Association
- International association of catboat owners and enthusiasts, with description and history of catboats plus boat sales, races and many links.
- http://catboats.org/

Rhodes 19 Fleet 7 Association
- Includes news and information, by-laws and constitution for Rhodes 19 Fleet 7 out of New Orleans, LA.
- http://www.rhodes19.com

Catalina 34 International Association
- Includes history, specifications, projects, photo gallery, brochures, boats for sale, voyages, and contact information.
- http://c34.org

New England Beetle Cat Boat Association
- History of the Beetle Cat, registry, newsletter, message board, regatta schedules and results, used boats for sale, and membership information.
- http://www.beetlecat.org/