Finding Stock Images: A guideMore Like This
WHAT IS STOCK?
Everyone knows about copyright. All of your work that you post on dA is copyrighted to you; and that is why dA is allowed to delete or ban people for claiming your work as their own, or referencing your work without your permission. The same license that protects your work does go for other people's work, on and off dA. Remember that!
Creative Commons is the sister to the copyright. It is still a license that says "I MADE THIS. YOU CAN'T SAY YOU MADE IT. You can, however, use it."
Creative Commons is broken into several tags, and these tags dictate how the image can be used. More than one clause can be added. (All of my stock is uploaded as Creative Commons Attribution Non-Commercial).
ATTRIBUTION - Credit the creator. Usually the uploader will provide how they would like to be credited. Most people on dA require a link back to their dA profile (such as :iconusername: or *username . This will show up as either their icon or their username