In this chapter, Anastasia M. Collins looks at bibliographic sources that offer the most comprehensive coverage of books, serials, as well as indexing and abstract databases that can help you identify sources your library may or may not have in their collection. With the future of these tools and the capabilities always improving, librarians "now benefit from the ready availability of Web-based resources that are international in scope and support advanced search capabilities" and with a strong understanding of these resources, everyone in your library community benefits.