ybw.com - Yachting & Boating World
For all interested in sailing, yachting and boating. Supported by magazines including Yachting World, Yachting Monthly, Practical Boat Owner and Motor Boat and Yachting.
http://www.ybw.com/

Boat Design Net - the Boat Design and Boat Building Site
"Boat design and boat building projects, plans, concepts, reviews, and resources. Sailboat, multihull, powerboat, and yacht manufacturers and custom builders. Index of yacht designers and naval architects, and professional marine design award.
http://boatdesign.net/

Sailing Source
Sailing information and news. The top sailing companies in boatbuilding, sailmaking, marine hardware and services. Sailing organizations and yacht clubs. Regatta results, searchable sailing calendar, new products and sailboat tests.
http://www.sailingsource.com/

Seiler Marine Boat Parts
Offering boaters a large selection of sterndrive and outboard parts online since 1999.
http://www.seilermarine.com