Developer Guide: Attributions
Showing Things on the Internet
If photos have a Creative Commons license, the original creator specifically designates what they want to be done with their original work, and they'll choose the right license to let you know what you can do with it. Here's a quick rundown of what Creative Commons recommends.
◣ If the work itself contains any copyright notices placed there by the copyright holder, you must leave those notices intact, or reproduce them in a way that is reasonable to the medium in which you are re-publishing the work.
◣ Cite the author's name, screen name, user identification, etc. If you are publishing on the Internet, it is nice to link that name to the person's profile page, if such a page exists.
◣ Cite the work's title or name, if such a thing exists. If you are publishing on the Internet, it is nice to link the name or site directly to the original work.
◣ Cite the specific CC license the work is under. If you are publishing on the Internet, it is nice if the license citiation links to the license on the CC website.
Additionally, if you are making a derivative work or adaptation, in addition to the above, you need to identify that your work is a derivative work i.e., "This is a Finnish translation of the [original work] by [author]." or "Screenplay based on [original work] by [author]."
If you have other questions about attribution, you may find the Creative Commons' FFAQ page helpful.