Cloud computing is considered to be one of the main business drivers for growth and innovation, and a global survey by Gartner listed cloud computing as one of the top three technology priorities for CIOs in 2012. Yet debate continues around its real benefits, security and data protection issues. The articles in this ebook look at different aspects of cloud computing, from strategic and infrastructure considerations to legal and security issues, aiming to provide practical advice and a clearer picture of its benefits and drawbacks.