This study was designed to determine the role extraversion plays in influencing the utilization of social support and how this support might then subsequently influence extraverts' and introverts' differential experience of stress. Ninety-nine undergraduate introductory psychology students served as participants in the study. Participants were administered questionnaires that assessed level of extraversion, perceived available support, enacted support, social network characteristics, and stress, as measured by daily hassles. Results of the study revealed positive correlations between extraversion and perceived availability of support (Belonging and Tangible), enacted support (Directive Guidance, Nondirective Support, Positive Social Interaction, Tangible Assistance), and social network characteristics (network size and contact with network members). Extraversion was also positively correlated with stress. Results of path analyses suggested that perceived availability of support, in particular Belonging support, might mediate the relationship between extraversion and stress.