This project focuses on the use of Twitter by nonprofit organizations that provide services to sexual assault survivors in Canada. Experiences of sexual assault are a stigmatized phenomenon with multiple negative health and societal outcomes. Social media have created opportunities for interpersonal engagement, interactivity and dialogue between nonprofits and the population to address these broader social issues. Social media (e.g., Twitter) provides nonprofits a promising solution to achieve organizational outcomes in an accessible way by allowing nonprofits to engage the public for funding and volunteers, to engage in advocacy to effect policy agenda setting or influence public perceptions. However, existing studies remain descriptive, focusing on nonprofits’ use or nonuse of social media. This project aims to advance this area of inquiry by examining how sexual assault nonprofit organizations use Twitter to achieve organizational outcomes, including political advocacy and public awareness about social issues, but also other important organizational outcomes that lead to effectiveness, including accountability, citizen engagement through volunteering and donating, familiarity of organizational efforts, and increased trust.