It's now my pleasure to share the definition on my public blog above. You'll see that the real-time sharing is an interesting characteristic of the Business Network concept. Actually, cloud computing and the further development of multitenancy architectures into a "collaborative tenancy" are an important enabler for Business Networks. Traditional B2B vendors, middleware vendors, and PaaS vendors are eager to get a share in the emerging world of cloud enterprise collaboration.
But, the first step is with the CIOs: They have to identify these business scenarios where a trust-relationship-model can save manual effort or stimulate totally new business models. This helps CIOs finally deliver the vision of Business Technology, which innovates their companies' core business and not just the way they run IT.