1. A computer-implemented method comprising: monitoring search queries associated with a search query category, the search query category associated with at least one search term and associated with a baseline frequency, the baseline frequency reflecting an average number of search queries detected during a time interval associated with the search query category; detecting a change in a search request frequency associated with the search query category with respect to the baseline frequency; determining an event associated with the search query category; identifying one or more data items associated with the event, the one or more items comprising at least one item listing associated with an item for sale; and generating, using at least one processor, a visual representation of a relationship between the one or more data items and the event, the generating including displaying the at least one item listing such that the at least one item listing appears visually related to the event.