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Distributed computing paradigms for sharing resources such as Clouds, Grids, Peer-to-Peer systems, or voluntary computing are becoming increasingly popular. While there are some success stories such as PlanetLab, OneLab, BOINC, BitTorrent, and SETI@home, a widespread use of these technologies for business applications has not yet been achieved. In a business environment, mechanisms are needed to provide incentives to potential users for participating in such networks. These mechanisms may range from simple non-monetary access rights, monetary payments to specific policies for sharing. Although a few models for a framework have been discussed (in the general area of a "Grid Economy"), none of these models has yet been realised in practice. This book attempts to fill this gap by discussing the reasons for such limited take-up and exploring incentive mechanisms for resource sharing in distributed systems. The purpose of this book is to identify research challenges in successfully using and deploying resource sharing strategies in open-source and commercial distributed systems.
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"Both medieval panel painters and those working in the fifteenth century created works that evoke the glow of precious stones, the sheen of polished gold and silver, and the colorful radiance of stained glass. Yet their approach to rendering these materials is markedly different. Marjolijn Bol explores some of the reasons behind this radical transformation by telling the history of the two oil painting techniques used to depict everything that glistens and glows-the varnish and the glaze. For more than a century after his death, the fifteenth century painter Jan van Eyck was widely credited with the invention of varnish and oil paint, on account of his unique visual realism. This was a myth,...