5. The method as recited in claim 1 , further comprising assigning the popularity score to the file based on a clickthru popularity.
6. The method as recited in claim 5 , further comprising calculating, for the file, a clicks-per-minute value, a clicks-per-hour value, and a clicks-per-day value, wherein the clickthru popularity comprises an aggregation of the calculated clicks-per-minute value, clicks-per-hour value, and the clicks-per-day value.