ABSTRACT : How are college students using and communicating with online social networking? How can these technologies be utilized by libraries and librarians? A review of the literature provides current context of social networking sites, the usage and viability of related technologies in academic libraries, and the role of computer-mediated communication (CMC) in facilitating student learning. Data from a survey and focus group provide insight into how students are using MySpace and Facebook, two widely adopted social networking sites. Findings are discussed to consider appropriate implementations of MySpace/Facebook in a university library setting, specifically on the pedagogical and practical feasibility of integrating social software in library instruction, reference, and outreach.