I have used https://marinehowto.com a lot for DIY boat projects. Referenced it multiple times during prep for 2016 and 2018. Maybe some of you have too.

The sole proprietor of the (now closed) small business, Rod Collins, had a severe stroke which caused him to close his business and lose his primary source of income.

In any event, I have really found his instructables very useful over the years and all of it was free. He relied on equipment sales to support the site and his HowTo efforts. If any of you have benefited from his work and you feel like helping him here are the links.