Following is a directory of companies and organizations that have published their employee blogging and social media policies online at some point in time, which you can benchmark to help you develop policies for your own business or organization. Note that policies can be internal guidelines that guide employees who are blogging or interacting on the social Web as representatives of their employers or external guidelines that guide employees who are blogging or interacting on the social Web on their own time and in a personal capacity, independent of their employers.
Social Media Handbook for Local Red Cross Units
Also see the American Red Cross Online Communications Guidelines
Internet Posting Policy