Many authors collect images which they haven't licensed, for personal use-- concept art, mood boards, and the like. Some do it publicly on Pinterest, but since they don't profit from it it's Fair Use, as far as I understand.
But if I wanted to include a piece of art I found on Deviantart in one of my emails to my mailing list, what kind of licensing or permission would I need?
I guess it's the same question as posting it on a blog. But this isn't from a stock photo site and it can be very difficult to determine licensing requirements if the site or the specific artist hasn't marked it with a CC license or anything. If you're not using the art in ad creative or as cover art/online packaging, but more as a "look what I found isn't this neat" for readers, does it require negotiating a single-use license with the artist?
I guess I could just link to the Deviantart page, or collect the image on a Pinterest board and then link to that. Is there a difference if it's a headshot of a movie star from IMDB, versus artwork by an Deviantart artist?
So confusing...