A system comprising: one or more computers; and a computer-readable medium tangibly encoding a computer program operable when executed to cause the one or more computers to perform operations comprising: receiving information identifying a plurality of resources that have been identified by a search engine as satisfying a search query; identifying a first resource in the plurality of resources as including a post to a discussion forum thread; identifying one or more second resources in the plurality of resources that are each distinct from the first resource, wherein identifying one or more second resources includes identifying outlinks on the first and one or more second resources, each second resource being linked directly or indirectly to the first resource via identified outlinks, each second resource including one or more other posts to the discussion forum thread; extracting information from the first resource and the one or more second resources about the discussion forum thread; and providing to a user device for display to a user as part of a response to the search query, a single search result for the identified first and second resources which include the one or more posts to the discussion forum thread, the single search result including the link to the first resource together with the extracted information. one or more computers; and a computer-readable medium tangibly encoding a computer program operable when executed to cause the one or more computers to perform operations comprising: receiving information identifying a plurality of resources that have been identified by a search engine as satisfying a search query; identifying a first resource in the plurality of resources as including a post to a discussion forum thread; identifying one or more second resources in the plurality of resources that are each distinct from the first resource, wherein identifying one or more second resources includes identifying outlinks on the first and one or more second resources, each second resource being linked directly or indirectly to the first resource via identified outlinks, each second resource including one or more other posts to the discussion forum thread; extracting information from the first resource and the one or more second resources about the discussion forum thread; and providing to a user device for display to a user as part of a response to the search query, a single search result for the identified first and second resources which include the one or more posts to the discussion forum thread, the single search result including the link to the first resource together with the extracted information. receiving information identifying a plurality of resources that have been identified by a search engine as satisfying a search query; identifying a first resource in the plurality of resources as including a post to a discussion forum thread; identifying one or more second resources in the plurality of resources that are each distinct from the first resource, wherein identifying one or more second resources includes identifying outlinks on the first and one or more second resources, each second resource being linked directly or indirectly to the first resource via identified outlinks, each second resource including one or more other posts to the discussion forum thread; extracting information from the first resource and the one or more second resources about the discussion forum thread; and providing to a user device for display to a user as part of a response to the search query, a single search result for the identified first and second resources which include the one or more posts to the discussion forum thread, the single search result including the link to the first resource together with the extracted information.