1. One or more computer-storage media having computer-executable instructions embodied thereon for performing a method of featuring recently published documents within search results, the method comprising: receiving a search query from a user; calculating a freshness score for the search query, wherein the freshness score is based on how many recently published documents are responsive to the search query; determining that the freshness score falls into a designated range bounded by a low-threshold score and a high-threshold score; displaying, on a search results page, a first plurality of search results that are selected for inclusion in the first plurality based on overall responsiveness to the search query; and upon said determining, displaying, on the search results page, a second plurality of search results that describe documents published less than a designated period of time ago.