This list of online Photo Collections has been compiled by members of the Mariners Mailing List.
Please take care to read the conditions for use of copyright material on each individual website as terms vary.
"As with all copyright work, you should first obtain permission from the copyright owner before you use someone else's work.You should also be prepared to pay a fee, as many photographers will charge you for using their work.
Only the copyright owner, (or his/her authorised representative), can give permission, so you should contact the photographer, or his/her company, directly for consent. For images published on the Internet, it is typical to contact the webmaster of the site in the first instance, unless the site provides contact details for the owner of the images.
The copyright owner has no obligation to allow you to use their work, and can refuse permission for any reason.
"Fact sheet P-16: Photography and copyright".UK Copyright Service. Retrieved 21 March 2011.