Solomon's Island Model Boat Club
State College Model Yacht Club
AA Parts - Italian Company with good alternative to the RMG winch
A.J. Fisher - Plans, kits and hulls
Aircraft Spruce - small scale plywood
BalsaUSA - assorted wood, supplies, parts and kits
DragonSkinsUSA - decals for Soling 1 Meter boats
Drone Buoy Products - Electronic components for the geo-positioning buoys.
DuBro - Parts
Grizzly - Tools and machines
Hobby Shop - Iron Horse Hobby House (Reading)
Hobby Shop - Modellbahn Ott (Boyertown)
Horizon Hobby - Very serious stuff
Micro Fasteners - Small hard to find fasteners
MicroMark - Modeling tools
Model Yacht Flags - Some hobby stores selling these in UK (may be out of business)
Model Yacht Fittings - Solid brass fittings
MotionRC.com - serious hobby stuff
Proctor Enterprises - turnbuckles and other useful parts
Radio Sailing Shop - Lots of stuff (AUS)
SAILSetc - Parts, rigs, sails, boats. (UK)
Scale Sailing - Foam core hull system boats
Tippecanoe Boats - Wooden RC kits
Tower Hobbies - serious hobby stuff
Sail Maker - Carr Sails
Sail Maker - John B Sails
Sail Maker - Spider Sails
Sail Maker - Windjammin Sails
Servo City - Servos and related things
Worth Marine - This vendor sells Pekabe (German) fittings
WoodenBoat School (Brooklin, ME - WoodenBoat Publications)