1. A system for collecting and accessing data related to Web Services, the system comprising: at least one registry configured to store descriptions of services; a candidate selection module configured to receive service criteria from a service requester, access the descriptions of services, and provide a list of candidate services that match the service criteria; a dispatch module configured to receive the list of candidate services and invoke each service contained therein; and a data aggregation module configured to aggregate results provided by the invoked services.