... make digital/hard copy of part or all of this work for personalor classroom use is granted without fee provided that copies are not made ordistributed for profit or commercial advantage, the copyright ... outdated, or unavailable,forcing the person to manuallysift through the responses search-ing for useful information.MetaCrawler (http://www.metacrawler.com) representsthe next level in the informa-tion ... queryingthe store for information on popular products, andanalyzing the store’s responses. In the software shop-ping domain, Shopbot was given the home pages for12 online software vendors. Shopbot...