Below is a link to an article that Stan wrote for Practical sailor that was published in the October 15 1996 edition, and has been posted online in the West Marine Advisors ever since. It is also included in the recent Practical Sailor book on marine electrical systems.
The electrical engineering issues of galvanic and electrolytic corrosion, RF grounding, and AC shorepower safety grounding remain the same and the article remains relevant today.