14. A client information processing unit coupled via a network with a hub processing unit apparatus for sharing queries comprising: an input for receiving a Uniform Resource Locator (URL) string from a first user; a comparator for determining if the URL string represents a query; an interface for storing the query in an information processing unit memory; an output for forwarding the query to a hub processing unit in the event that the first user selects the query for sharing with a second user connected to the hub processing unit; an accounting database for storing information for awarding the first user for submitting the query for sharing; and an input for receiving, from a second user, a selection for one of the stored queries for sharing.
15. The client information processing unit as defined in claim 14 , wherein the input further includes a selection device so that the first user selects a query from a query history list.