Firstly, I just learned how easy it is to search for similar images by simply opening a couple of windows side by side and then dragging and dropping an image you like into a Google Images searchbox. See below.
This will quickly and easily lead you to "similar" images.
Secondly, consider starting a Pinterest account. There are a surprisingly lot of people "pinning" pictures of proas, boats, design, Pacific life, etc. Watch out, though - browsing here can be addictive...
