This article discusses the integration of library resources for users of personal digital assistants (PDAs), with a focus on collections issues within an academic environment. The University of Alberta Libraries' PDA services initiative is used as an example of integrating services and resources into a library collection. Licensing issues, loaning of PDA books on expansion cards, cataloguing and processing of PDA books, and making existing resources PDA-accessible are all discussed. Although PDA integration is still at the early stages within libraries, there is much that libraries can do to support users of personal digital assistants. (Contains 2 tables, 8 resources and 28 online resources.)