Mark and his wife own a C-Dory. They are also the publishers of the Managing the Waterway Guides. I have their guides for the east coast and Florida Keys - I really like the format.
I think Mark was just mentioning the Florida by Water website... no idea if there is any connection. I heard about the Florida by water site on the World of Boating a week or two ago. It sounds like it will be a worthwhile site as more people give input. Like any new cruising website that depends on user input for info and ratings, this will be a work in progress.
So, unless I'm misunderstanding, Mark's post wasn't to promote his website, just informing folks that another option for cruisers exists.
BTW, I bought Mark's most recent book, "Get Onboard with E-Charting", in combination with the DVD set of all available US charts. Very well done.
Best wishes,
Jim B,