To post stamps to dA, you can to two things. There is a bar with labels of "Note", "(Facebook Symbol) Share", "(Tumblr Symbol) Share", and "Tweet" in the top right corner of this deviation. What you do is click the arrow beside it, highlight the thumbnail link ( : thumb110504425 : with no spaces, in this case) and paste it. There also a section in the stats area with the thumb number. Just copy and paste it.