While you are wandering about in the wilds of the internet looking for inspiration try these

The J. Russell Jinishian Galery — Maritime art
http://www.jrusselljinishiangallery.com/index.htm

The Mystic Seaport Gallery
http://www.mysticseaport.org/index.cfm?fuseaction=home.viewPage&page_id=05E77CA2-9582-B44A-CDF0F4EBB3E8EE07

American Society of Marine Artists (ASMA)
http://americansocietyofmarineartists.com/