This widget displays topics that are related to the current
search. Larger topics indicate that a significant amount of the
search results are related to that topic. You can click any of the
related topics to add that topic to your search. You can remove a
topic by clicking the x next to it in the title bar of the search
results. Any time that you change your search, by adding a
refinement, related topic, or changing the query, a new list of
related topics will be generated.