A receiver receives 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 modifies the search results by associating at least one context item with data for enabling the user to cause the search results...http://www.google.co.uk/patents/US7165080?utm_source=gb-gplus-sharePatent US7165080 - Method and apparatus for facilitating refinement of a search
