Source- wired.com The definition of cloud computing may be nebulous, but its promise is clear. Instead of filling a warehouse with servers and paying people to manage them, a company can pay a cloud computing provider for computing resources on demand and pay only for what it actually uses. This prospect lured organizations ranging from startups to massive corporations to stodgy government agencies onto cloud offerings from Amazon, Google, Microsoft, and others. Those now well-established services might save companies from buying and managing