Resources contributed in ad hoc grids are volatile, unreliable and non-dedicated. Furthermore, resource owners contribute resources according to their own use and access policies. This phenomenon necessitates the study of the mechanisms that enable the ad hoc grid to modify its infrastructure in an autonomous way according to varying resource availability. This book, presents the mechanisms that enable the construction and deployment of ad hoc grids that can self-adapt to provide better resource utilization under dynamic conditions. These mechanisms are implemented on a structured overlay...