Editors, email, and instant messaging were first widely used by students who later brought knowledge of their uses and effective practices into workplaces. Weblogs may make such a transition more quickly. We present a study of emergent blogging practices in a corporate setting. We attended meetings, read email, documents, and weblogs, and interviewed 38 people- bloggers, infrastructure administrators, attorneys, public relations specialists, and executives. We found an experimental, rapidly-evolving terrain marked by growing sophistication about balancing personal, team, and corporate incentives and issues.