Links of Interest

Weather:
Great Lakes Water Levels  
Local Weather
Weather by Radar
Lake Conditions at Weather Buoy

Sailing:
US Sailing
Yachting Club of America
Lake Michigan Performance Handicap Racing Fleet - PHRF
Marine Services:
Tower Marine
Tower Marine Sales
BoatU.S.
Torresen Marine
West Marine
Body Boat Shop
Seoladair Ltd., boom supports, fenders, etc.