This document summarizes a mid-sized library's experience moving IT services to the cloud. It outlines pathways for assessing services and goals, training, planning, and implementing a cloud migration. It provides examples of library systems that could be moved to software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS) models in the cloud. The library currently uses Amazon EC2 to host some endpoint services and data subscriptions, and Amazon S3 for server disks, application storage, and as a platform for EC2 systems.