Alcohol-related problems disproportionately impact sexual minority women. Recent research suggests that lesbian-identified women overestimate peer drinking norms and therefore, personalized normative feedback (PNF) may be an appropriate and efficacious intervention strategy for reducing alcohol-related risks in this population. To inform the development and packaging of such interventions, this study examines lesbians' use of the popular social media sites Facebook, Instagram, Snapchat, and Twitter in relation to alcohol consumption, perceptions of peer drinking norms, confidence in normative perceptions, and interest in receiving alcohol PNF. Findings suggest that the lesbians who are most likely to benefit from a PNF alcohol intervention may also be the most readily reached via social media sites. Alcohol interventions that both recruit and deliver PNF via widely used social media platforms such as Facebook and Instagram represent a promising and cost-effective strategy to reduce heavy drinking among lesbians.