4. The method of claim 3 wherein the search popularity information also includes a category associated with a search topic, the method further comprising: receiving an indication of a category; accessing the search popularity information to determine a search topic associated with the indicated category; and presenting the search topic associated with the indicated category and the at least one reason for popularity of the search topic.
3. The method of claim 1 further comprising accessing search popularity information stored in a computer storage medium that includes search topics and reasons, wherein: a search topic is associated with at least one reason for popularity of the search topic, and the at least one reason for popularity of the search topic is determined by analyzing at least one content feed from an electronic source of published information.