41. A system comprising: one or more computer servers; an interface of the computer servers that is configured to receive a search query from a first user; a related query processor of the computer servers that is configured to identify a first related query as being related to the search query based on information that indicates relative timing or sequencing between the search query and the first related query in prior submissions by a plurality of users that include users other than the first user; a document locator of the computer servers that is configured to identify a first article that is responsive to the search query; and a ranking processor of the computer servers that is configured to, in response to identification of the first article as responsive to the search query by the document locator, retrieve data associated with the first related query that indicates, at least, a frequency with which users have selected the first article when the first article has been presented as a search result for the first related query, wherein the ranking processor is further configured to determine a first ranking score for the first article as a search result for the received search query based at least in part on the retrieved data associated with the first related query.
41. A system comprising: one or more computer servers; an interface of the computer servers that is configured to receive a search query from a first user; a related query processor of the computer servers that is configured to identify a first related query as being related to the search query based on information that indicates relative timing or sequencing between the search query and the first related query in prior submissions by a plurality of users that include users other than the first user; a document locator of the computer servers that is configured to identify a first article that is responsive to the search query; and a ranking processor of the computer servers that is configured to, in response to identification of the first article as responsive to the search query by the document locator, retrieve data associated with the first related query that indicates, at least, a frequency with which users have selected the first article when the first article has been presented as a search result for the first related query, wherein the ranking processor is further configured to determine a first ranking score for the first article as a search result for the received search query based at least in part on the retrieved data associated with the first related query. 49. The system of claim 41 , wherein identifying the first article as responsive to the search query comprises identifying the first article as responsive to both the search query and the first related query.