This document discusses using SMS messaging to reach users of a library portal. It proposes developing an SMS system to send general, event, and prize information as well as library-related services. Sample messages are provided about reserved materials being ready or lent to another user, and materials being due. The system would send SMS messages tailored to different user profiles at a low cost of 5-7.5 cents per message. Challenges mentioned include increasing the number of users who provide their cell numbers and expanding the types of messages sent through the system.