The Internet and especially the World Wide Web are growing at a tremendous rate. More and more information is becoming directly available for human consumption. But humans have a limited information processing capacity and are often not able to find and process the relevant information. Automation, in the form of processing agents that provide a powerful extension to human capabilities, is required. However, with the current technology it is difficult and expensive to build such automated

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... and support human user with their information processing power, since agents are not able to understand the meaning of the natural language terms found on todays' webpages. The remedy this situation we look at different existing technologies and put them together to a new information food chain [Etzioni 1997] for agents, that enables advanced applications on the WWW.