Club 420 Association
www.club420.org
International Optimist Dinghy Association
www.optiworld.org
Maine Schools Sailing Association
www.mssa.mma.edu
MDI High School
www.mdihs.u98.k12.me.us
NetKnots
www.netknots.com
Northeast Sailing Association
www.northeastsailing.org
Rules of Sailing
www.game.finckh.net/indexe.htm
Sea Tow Foundation Boating Safety
www.boatingsafety.com
United States Optimist Dinghy Association
www.usoda.org
US Sailing
www.ussailing.org
McLaughlin Boat Works
www.optistuff.com
Gill North America
www.gillna.com
Henri Lloyd
us.henrilloyd.com
Harken Sport
www.harkensailinggear.com
Laser Performance
www.laserperformance.com
Slam Shops
www.slam-shops.com