Subject liaisons and research librarians know multiple metrics and qualitative inputs are required to assess the full value of a given electronic resource, particularly within the context of a library’s entire collection. This session will outline how our library is incorporating both usage statistics provided by vendors and peer institution comparisons in a Sharepoint-based invoice tracking system. We will also describe how we are mining faculty requests, interlibrary loan data, chat transcripts, and other reference/research inquiries as we strive to develop a consistent and simple, yet comprehensive, method for evaluating not only existing resources, but also potential new purchases and subscriptions.