We propose a novel approach for supporting privacy management that leverages community experience and expertise via the process of social navigation. Social navigation simplifies the often complex task of managing privacy settings, and systems that employ social navigation can advantageously complement user privacy management processes. We implemented our approach to privacy management in the Acumen system; Acumen uses social navigation to enable individuals to manage their Internet cookies both manually and automatically based on the behavior of others in the community. We present the Acumen system in detail and discuss data obtained from a six-week, preliminary deployment of Acumen. Lastly, we discuss challenges that systems implementing our approach must address if they are to be successful.