Purpose In this paper, faculty librarians at an academic institution explore the ethical dimensions of conducting research with user-generated social networking service data. In an effort to guide librarian-researchers, this paper first offers a background discussion of privacy ethics across disciplines and then proposes a library-specific ethical framework for conducting SNS research. Design/methodology/approach By surveying the literature in other disciplines, three key considerations are identified that can inform ethical practice in the field of library science: context, expectation, and value analysis. (...) For each of these considerations, the framework is tailored to consider ethical issues, as they relate to libraries and our practice as librarian-researchers. Findings The unique role of the librarian-researcher demands an ethical framework specific to that practice. The findings of this paper propose such a framework. Practical implications Librarian-researchers are at a unique point in our history. In exploring SNSs as a source of data to conduct research and improve services, we become challenged by conflicting and equally cherished values of patron privacy and information access. By evaluating research according to context, expectations, and value, this framework provides an ethical path forward for research using SNS data. Originality/value As of this paper’s publication, there is no existing ethical framework for conducting SNS research in libraries. The proposed framework is informed both by library values and by broader research values, and therefore provides unique guidelines for the librarian-researcher. (shrink)