1 ) A navigating interface system for navigating through search results returned by a semantic organization upon receiving a search query and organized into categories and sub-categories, the interface system comprising a first user-engageable control dynamically populated with one of the categories and the sub-categories related to the one of the categories, and a second user-engageable control dynamically populated with the other of the categories, wherein a scope of the search results is responsive to a selection, by a user, of one of the sub-categories related to the one of the categories which populate the first user-engageable control, and to a selection, by the user, of one of the other of the categories which populate the second user-engageable control.