In a corporate network, you have one or more teams of employees, whose duty is to assign and maintain authentication and authorisation information. Authentication validates who someone is, and authorisation validates what ability that person should be granted, when accessing corporate resources on the network. Each employee gets one and only one identity, and has one specific list of access rules (authentication / authorisation). This restriction can (must) enforced, because each employee provides proof of identity, when registering as an employee. With Blogger (Google), as with most Internet services, there is no real proof of identity required. In the online world, many people maintain multiple identities. That is one of the features of online life, called "freedom". Freedom to be who you want to be, or at least to seem to be. So you, and I, can have as many Google accounts as we wish. Google accounts are free, and if you have multiple lives, or interests, you can ha...