Truth be told, I seldom find articles or blog fodder regarding cooking on boats to be very educational or inspiring. Maybe my problem is I read a lot books, articles, and blogs on cooking and, as a result, I just find the boat oriented output less than exciting.
One of my regular reads in terms of food and suchlike is Serious Eats which is entertaining, educational, and inspirational in the "Boy, do I have to try this recipe!" sense.
As it happens, Serious Eats had a really good article "Life at Sea: The Pleasures and Perils of Nautical Cooking" by Lauren Sloss a couple of years back on the subject of cooking on boats and you should really check it out.
Pretty much sets the standard from where I sit.