1. A method in a computerized environment for automatically displaying web-search results in a structure-based, search-refinement interface, the method comprising: receiving a web-search query; obtaining web-search results based on the web-search query; analyzing the web-search results to identify shared-structure elements present in the web-search results; determining whether sufficient shared-structure elements are present in the web-search results to satisfy a structure threshold; and if the structure threshold is satisfied, automatically displaying one or more search-refinement options and the web-search results on a common display, wherein the search-refinement options are based on the identified-shared-structure elements.