Over at the ONF website we have collected together numerous guides from past and present to help you with your playing and understanding of the game.
To view these guides made by NF players goto www.opennavyfield.com/guides.html
From this you will be able to see the guides are sorted into these catogries:
Ships Setup Guides
Gameplay Guides (with Battleship and Carrier subsections)
Crew setup/Classing Guides
And a Redirect link to Obst's awesome NF-guides.com
All of these are player made guides, made by people who want to give back to the community. If you spot any errors, in the guides or with the credit for the original author, PM me here or on the ONF forums.