If your employees each have their own business e-mail address, make sure they know its limits. Your policy should prevent them from using it on blogs or other social networking sites. Just one slip up—in which a worker lists his or her company e-mail address in a non-business context—can imperil your employer.
That's because an organization can be legally liable for any post, upload or e-mail sent under its name—even if the employee sends it over the weekend from a personal computer from home. Require all staffers to use personal e-mail addresses whenever they communicate on blogs, wikis or other online forms of social networking.