1. A method comprising: receiving from an advertiser an indication of an example resource, wherein the example resource is an example of a type of resource that the advertiser desires to target with a promotional campaign; identifying one or more query logs wherein a given entry in the query log includes a query that was received and an identification of a resource that was selected as responsive to the query; evaluating the one or more query logs to determine one or more queries including one or more query terms that resolved to the example resource; using the determined one or more queries and the query logs, identifying one or more matching resources other than the example resource that also were provided as a solution to the one or more determined queries; filtering the one or more matching resources based on one or more criteria to identify matching resources that are relevant to the advertiser, wherein filtering includes ranking the one or more matching resources based at least in part on a frequency of a respective matching resource being returned in response to the one or more queries as represented in the query logs and identifying one or more top ranked resources as leads wherein a lead can be used as a targeting criteria for the promotional campaign; and providing suggestions to the advertiser including providing the leads for targeting content for the promotional campaign.
13. The method of claim 1 wherein the content sponsor is a sales representative and the matching resources are sales leads.