On Feb 13, 2011, at 11:54 AM, Carrol Cox wrote:
> The photocopier is much easier to use than the mimeograph. Facebook reaches
> more people than the phone tree.
Somehow, I keep seeing this as a basic that you overlook - the difference. The phone tree is hierarchic while the facebook is netted. The phone tree is unidirectional of flow, with response to the top only. The network of Facebook is broadcast with viewing and feedback available to and from all participants. This seems to qualify as the social mediation that (I think) you claimed was missing in 'social media'.
martin