The session details seven Personal Digital Assistant (PDA) implementations at Texas A&M University (TAMU) and/or North Carolina State University (NCSU) Libraries. These seven examples represent new levels of library service for PDA users that focus on physically implementing handhelds, creating original content and resources, and building collaborative programs. The session outlines the Librariesí motivation for developing each service, the challenges posed by each implementation, and the Librariesí approach to each challenge. User responses to each service are also discussed. The specific implementations detailed are: 1. Issuing Handhelds in Distance Education (TAMU) 2. Distributing Wireless PDAs for Clinical and Classroom Use (NCSU) 3. PDA and Ebook Circulation Programs (NCSU & TAMU) 4. Public PDA Syncing Stations (NCSU & TAMU) 5. Handheld Resources in Medical Curriculum Project (TAMU) 6. PDA Web Channels (NCSU & TAMU) 7. PDA Library Resources (NCSU & TAMU) PDA Library resources include handheld OPAC searching, advanced instruction, and PDA technical support. In some cases, existing Library resources or services have evolved to include PDA elements, while others have been created specifically for PDA users. The session concludes with a discussion of future services and challenges, and a brief question and answer period.