1. A data indexing system, comprising: a plurality of servers, each of the plurality of servers including: a plurality of resources corresponding to one of the plurality of servers, the plurality of resources being part of a resource set; and a tracked resource set corresponding to the resource set, the tracked resource set describing the plurality of resources located in the resource set, a corresponding one of the plurality of servers identifying the plurality of resources using rules of linked data; a tracked resource set client in communication with the plurality of servers, the tracked resource set client having a data index that includes the tracked resource set of each of the plurality of servers.