1. Apparatus for presenting search results to a user to facilitate refinement of the search, the apparatus comprising: a receiver operable to receive from a search engine search results consisting of at least one search item associated with at least one context item relating to the search item; a modifier operable to modify the search results by associating at least one context item with data for enabling the user to cause the search results to be filtered in accordance with that context item by selecting that context item; and A supplier operable to supply the modified search results to the user.