| Originally Posted by monicaswave |
So, what exactly does it mean by attribute the user? Would I have to put a link to the picture on the postcard or just the name of the person who submitted it.
They have great photos there!
The main idea is to let people know that it's not your photo and to provide a way for people to get in touch with the owner. I've seen it accomplished with something like "Photo courtesy Flickr.com user danielpozo" printed in small text below the photo. You can read the official description of the license here: Creative Commons Attribution-Noncommercial-No Derivative Works 2.0 Generic
Or just take the easy route and email the user directly. I'd be shocked if they said no and you'll be in the clear.