20. A web agent creator embodied on a tangible computer readable medium coupled to a processor for creating a web agent to acquire product information from the world wide web, said web agent creator comprising: a web browser user interface, a pattern expression discovery algorithm coupled to said user interface, said algorithm including means for discovering patterns of product information, a results editor coupled to said user interface and said pattern expression discovery algorithm, said results editor having means for editing product information, an agent generator coupled to said user interface and said results editor, said generator having means for generating said web agent having characteristics determined by said algorithm, and a form value editor coupled to said user interface and said agent generator, said form value editor having means for setting parameters of said web agent, said web agent creator providing the tangible result of a web agent executable on a processor which together acquire product information from the world wide web.
20. A web agent creator embodied on a tangible computer readable medium coupled to a processor for creating a web agent to acquire product information from the world wide web, said web agent creator comprising: a web browser user interface, a pattern expression discovery algorithm coupled to said user interface, said algorithm including means for discovering patterns of product information, a results editor coupled to said user interface and said pattern expression discovery algorithm, said results editor having means for editing product information, an agent generator coupled to said user interface and said results editor, said generator having means for generating said web agent having characteristics determined by said algorithm, and a form value editor coupled to said user interface and said agent generator, said form value editor having means for setting parameters of said web agent, said web agent creator providing the tangible result of a web agent executable on a processor which together acquire product information from the world wide web. 21. The web agent creator according to claim 20 , wherein: said user interface indicates text selected by the user interface to said pattern expression discovery algorithm, said results editor, said agent generator, and said form value editor.