1. A computer-implemented method, comprising: identifying, via at least a first processor, a plurality of records associated with a cluster identifier in a local search data repository, where the plurality of records include a first record storing contact information and a plurality of records storing web site addresses; using a web site address stored in at least one of the plurality of records associated with the cluster identifier to obtain candidate contact information if a size of a website that includes the web site address is smaller than a predetermined size, where the size of the web site is determined by a number of web pages for the web site; determining whether the candidate contact information matches the contact information stored in the first record; and storing information associated with the cluster identifier with the web site address in a web search index when the candidate contact information matches the contact information stored in the first record.
4. The method of claim 1 , where the information associated with the cluster identifier is stored with the web site address in the web search index when the candidate contact information matches the contact information stored in the first record.