I found this web site while looking for marine battery information. Don't let the name of the web site foul you.
http://www.yachtsurvey.com/
Here's some of the topics this guy talks about in some length:
All about Bilge Pumps
Attaching Hardware to Your Boat
Corrosion (with 9 photos)
Corrosion in Marinas
Dealing With Leaks
Deck Leaks
Diesel Maintenance, Or Lack of It
Exhaust Risers
How to Install an Aluminum Fuel Tank
. . . . So you Don't Have to Do It Again
How to Prevent Your Boat from Sinking
Tips on Electrical System Use and Maintenance (rev. 11/02/98)
How to Repair Window Leaks
Maintaining Stern Drives
Maintenance Fundamentals Part I : Engines
Preventing Rot in Encapsulated Wood Structures
Propellers
Repairing Diaphragm Pumps
Repairing Rotary Vane Pumps
Safe Harbor: Hurricane Protection for Your Boat
Solving Chronic Battery Problems
Tips on Painting Fiberglass Boats Carbon Monoxide Alert
Docking in Style
Navigation Lights
Affordable Boats
After the Survey
All About Buying Used and Older Boats
Art of the Deal, The
Boat Weight
Bubble Decks
Chine Riding new
How to Avoid Buying a Stolen Boat
It's Got Recent Overhauls! - Dealing with Engines Part I
What Does an Overhaul Entail?- Dealing with Engines Part II
Keep the Pleasure in Pleasure Boating :
Beyond Glitz and Glitter
Perfect Boat, The
Power Boat Trim
Recent Design, Construction and Materials Improvements 1996 - 2000 Models New
Screw it: Graphic Reasons Not to Fasten Boat Parts With Screws
To Buy or Not to Buy . . . A Blistered Boat, That Is.
Top Twenty Design and Construction Faults : Updated for Y2K New
Why Internal Hull Areas Should Be Accessible? New
Windows, Windows, Those Leaking Windows