Sponsored by the Communication, Information Technologies, and Media Sociology section of the American Sociological Association, this volume contains eight essays on social movements and mass media. Sociology, media studies, education, and other scholars from the US address the influence of mass media on activist recruitment, including the power of story and the relevance of family, friends, and school for youth mobilization; discursive activism and the implications of online participation and identity, including the #YesAllWomen hashtag and its interaction with media and blogs, and the civic identities of youth online; and organizational dynamics in the digital age, with discussion of youth nonprofits, the relevance of leadership in the anti-genetically modified organisms movement, and the use of media tools and participant inclusion in youth-oriented organizations and factors influencing organizational beliefs about effectiveness.