33. The system according to claim 32 , wherein the extension and modification facility can be used to extend or modify behavior of the plurality of domain agents.
33. The system according to claim 32 , wherein the extension and modification facility can be used to extend or modify behavior of the plurality of domain agents. 34. The system according to claim 33 , wherein the users and content developers can add one or more of new commands, keywords, information, or information sources to the agent architecture to extend or modify the behavior of the plurality of domain agents.