Slam the Boards (STB) is a grassroots activity in which librarians visit social Q&A sites on the tenth of each month and answer as many questions as possible. Through this activity, librarians hope to represent librarianship at a new venue; encounter users beyond the library and provide well-sourced, dependable answers to people's questions; and ultimately increase the public's awareness of libraries. Semistructured interviews were conducted with participating librarians, examining their motivation, experience, and reflection. Findings of the study can help develop an in-depth understanding of STB and yield insights on how to efficiently and effectively promote library resources and services beyond the library.