To understand the relationship between information flows and white-collar output, we collected unique data on email communications to study the network connecting individuals in a management recruiting firm. We also gathered data on revenues and contracts at the individual level. Our empirical results suggest that the size of an individual's internal email network is more highly correlated with output than with the number of email messages, the time spent communicating, the external network size, and with all other measures of communication. This result suggests that a more favorable position in the network structure is associated with higher individual output.