1. A method, implemented in a computer that is one of a plurality of computers in a network, the method comprising: grouping, into a plurality of groups, selected ones of the plurality of computers, wherein the grouping is based at least in part on the number of the plurality of computers in the network that the computer is aware of; selecting a portion of object information corresponding to an object; and identifying which of the selected ones of the plurality of computers to communicate the object information to for identification of potentially identical objects stored on the plurality of computers, wherein the identifying is based at least in part on comparing the selected portion of the object information to a portion of a computer identifier of one or more of the selected ones of the plurality of computers.