The document discusses cloud computing services and their adoption by enterprises. It defines cloud services as shared services accessible over the internet. While concerns around security and control remain challenges, cloud services offer benefits like lower costs, flexibility, and access to latest functionality. The document predicts that cloud adoption will grow rapidly in coming years, with cloud spending increasing from 4% to 9% of IT budgets by 2012. It advises CIOs to take a portfolio approach to cloud and traditional IT options.