One really simple thought is a "sprout" or "seed" concept which we do on youngwritersproject.org. I call it the fifth level of story response, the others being 1>>Read and say nothing. 2>>Read and "love" or "like" or, gulp, a FB emoticon. 3>> Comment to acknowledge that you have read/experienced the piece. 4>>Given Feedback, as in "articulate what you notice in a way that is well received so as to help the creator improve the piece." (my quote, or as Alan would say, this is a quote from Geoffrey Gevalt) and 5>>The Sprout -- as in "I felt/experienced your piece so deeply it provoked me to share this..." ... #5 to me is the way digital storytelling can replicate the conversational storytelling experience but, in fact, in a much deeper way; the "listening" online is uninterrupted AND the listener can't interrupt the teller; the telling of the new story is far more focused than the oral tradition, because the act of writing/creating in the digital space requires a much more thoughtful approach.