Thank you guys, but maybe I didn't explain the problem clearly.
I don't need sites with pictures. One main problem is dating the images I can get in Google or Bing. I need to know if a camo was on a certain ship in 1942, or 1943 or whenever. The more accurate, the better.
Then there are some of the textures which I can't find a ship to match. For instance, this one:
It's supposed to be a G&H destroyer, but I never found a pic with a similar camo in any of the ships of the class.