Ken Campbell has hosted rules clinics at the pond, breaking down racing situations in a clear and approachable way. Here are some recordings and resources from those sessions.
Port vs. Starboard at Windward Mark
Windward Mark Rounding
Barging at the Start Line
At the Start Line: Windward vs Leeward, Barging & Overtaking
Port vs. Starboard during Tacking
Room at the Finish Line
How to Protest Another Boat?
When do rules apply during a race?