This research examines the relationships among the types of self-serving political messages sent in organizations, the channels through which they are sent, and the targets to whom they are sent. Two theoretical streams converge in this study: Communication as Political Behavior and Media Usage Theory. A review and synthesis of these two bodies of literature yielded three hypotheses, each of which received strong statistical support. The data suggest that the process of encoding and transmitting self-serving messages is strongly related to (...) the specific target to whom they are sent (boss, subordinate, or peer) and the channel through which they are sent (face-to-face, telephone, memo, or e-mail). (shrink)