Here is my proposed structure for the Corporate Social Media Platform for the typical service or product oriented B2C organization. The first image depicts the Social Media Channels, and the second image below shows the Corporate Social Media Community Structure.
“Innovation distinguishes between a leader and a follower.” ~ Steve Jobs
Each of these channels represents a bundle of one (1) Facebook Account and one (1) Twitter Account. You can also add separate YouTube Accounts for different purposes, such as a separate account for sales than you have for customer support.
In the social media community, the CEO, or Tribe Leader dictates the culture to the lower-clans who are represented by sales personnel. Each “Front-Man” serves as a “community” leader of their own mini-communities, or clans within the larger community which is the organization.