Personnel Decisions Based on the Social Networking Sites

Are employers morally justified in using information posted on social networking sites to help make personnel decisions such as hiring, discipline, or discharge? Should they be permitted to monitor what their employees post on social networking sites? Should they be allowed to create and enforce rules that restrict what employees may post on social networking sites? What, if anything, do you recommend should be done regarding these matters? Be specific. Persuasively defend your view by drawing upon what you have studied and learned in this course.