Another definition of Social Business by Adam Metz

It’s the collection of activities in the enterprise value chain that touch your company’s social customer, inclusive of the social demand value chain (marketing, sales, service) and the social supply value chain (purchasing, manufacturing, distribution).

via revenuemarketer.com

Another definition of Social Business. I am missing the Enterprise 2.0, the Enterprise-internal perspective in it. Nevertheless the Social Value Chain sounds interesting.