I found this list on Scott Monty's website a few weeks ago, and I really liked it. He's the new media guru for Ford Motors, and he's adapted the grief model from psychology to social media.
It's really quite clever, and it reminds me of the social media resolution I brought to the Council near the beginning of the year. In the weeks after introducing the resolution, I watched the public go through each of these stages, until finally the resolution was passed and we entered stage 5: acceptance.