--you have to see this website.
This site is all about the ships that sail the Great Lakes and connecting waters. There are 1,000's of photos of ships---including the whole U.S. and Canadian fleets. You will also find foreign ships and cruise ships, lighthouses, maritime museums and all kinds of other interesting boat related stuff.
I stumbled on this site today while searching for something else. I wish I would have found it a long time ago.