This document summarizes a seminar on IT-as-a-Service using virtualization. IT-as-a-Service involves moving some or all IT functions to managed service providers for improved efficiency, reliability, cost savings and scalability. The seminar speaker discussed how IT challenges will increase dramatically by 2012 due to growth in mobile devices, servers, data and transactions. Adopting cloud computing through IT-as-a-Service can help companies do more with less by reallocating resources, gaining infrastructure reliability and redundancy, shifting costs, and allowing resources to scale on demand. The seminar included a demonstration of VMware virtualization and discussed how cloud adoption can provide competitive advantages for companies.