The document discusses cloud computing and its applications for libraries. It begins by explaining what cloud computing is and some of its key benefits like flexibility, cost effectiveness, and accessibility from any device. It then outlines different types of cloud models including private, public, hybrid, and community clouds. The document notes advantages of cloud computing for consumers, small businesses, and large companies. Potential concerns around reliability, security, privacy, and unpredictable costs are also presented. Finally, it discusses how cloud computing represents a more efficient model than local servers for libraries and provides some examples of cloud services that could be used.