A search interface is provided that is easy to use and understand. A unique visual metaphor in the form of a "highlight" tool is used for this purpose. The highlighting tool is used to identify search terms. In one embodiment, a user uses the tool to mark text on a document, such as an HTML document...http://www.google.com.au/patents/US5982370?utm_source=gb-gplus-sharePatent US5982370 - Highlighting tool for search specification in a user interface of a computer system
