Here are some links that might be interesting to explore:
SailZing
https://sailzing.com/
ILYA Inland Lakes Yachting Association
https://ilya.org
ILYA Links Page
https://ilya.org/links/links.html
MC Scow MC Sailing Association
http://www.mcscow.org/
Melges Performance Sailboats Links Page
https://www.melges.com/?p=pages/useful-links
United States Sailing Association
http://www.ussailing.org/
ICSA Inter-collegiate Sailing Association
http://collegesailing.org/
First Sail
http://firstsail.org/
Speed and Smarts
http://www.speedandsmarts.com/
SailZing
https://sailzing.com/
ILYA Inland Lakes Yachting Association
https://ilya.org
ILYA Links Page
https://ilya.org/links/links.html
MC Scow MC Sailing Association
http://www.mcscow.org/
Melges Performance Sailboats Links Page
https://www.melges.com/?p=pages/useful-links
United States Sailing Association
http://www.ussailing.org/
ICSA Inter-collegiate Sailing Association
http://collegesailing.org/
First Sail
http://firstsail.org/
Speed and Smarts
http://www.speedandsmarts.com/