A method of caching data in a global cache distributed amongst a plurality of computing devices, comprising providing a global cache for caching data accessible to interconnected client devices, where each client contributes a portion of its main memory to the global cache. Each client also maintains an ordering of data that it has in its cache portion. When a remote reference for a cached datum is made, both the supplying client and the requesting client adjust their orderings to reflect the fact that the number of copies of the requested datum now likely exist in the global cache.