26. The computer program product of claim 25 , wherein the instance score comprises a number of instances that the first article was shown in a search result for the first related query.
26. The computer program product of claim 25 , wherein the instance score comprises a number of instances that the first article was shown in a search result for the first related query. 27. The computer program product of claim 26 , wherein the number of instances the first article was shown in a search result for the first related query comprises instances shown in a context of the search query, the instances being in the context of the search query when the instances are shown within a threshold timing or sequencing of the search query being submitted.