6. The method of claim 1 , where the score for the source is further based on a value representing international diversity of the source.
1. A computer-implemented method comprising: obtaining, in response to receiving a search query, articles and respective scores; identifying, using one or more processors, for an article of the articles, a source with which the article is associated; determining, using one or more processors, a score for the source, based on polling one or more users to request the one or more users to provide a metric that represents an evaluation of a source and based on a length of time between an occurrence of an event and publication, by the source, of another article associated with the event; and adjusting, using one or more processors, the score of the article based on the score for the source.