The author investigated the relation between young people's new literacies practices and identity development on Twitter and found that participants used three new literacies practices (live-tweeting, hashtagging, and information sharing) in unique ways to develop feminist identities in this social media space. Participants mobilized popular culture to initiate dialogue about feminist issues, such as the wage gap, to participate in social activism (e.g., advocating for women's reproductive care), and to provide informal counsel to peers. Twitter can be a vital space for young people to become feminists, providing opportunities to learn, develop, and participate.