A pithy summary of how stray current and galvanic action are out to get you and what to do about it.
This liquid can be sprayed between different metals to prevent galvanic action between them, for instance on stainless components in aluminum equipment.
Primer on how metal is degraded by seawater, with diagrams and ways to prevent it.
Discount supplier of all types and sizes of zincs for sacrificial cathodes. Protection for rudder, shaft, hull, engine, prop, sterndrive, outboard, and other locations.
Unmoderated forum on marine electrical and electronic equipment. Good advice and resources here, but you have to dig and you have to be selective.