| http://www.w3.org/ns/prov#value | - A. N. Goldhaber and G. Fitts, Attention Brokerage, U.S. Pat. No. 5,794,210 (11 Aug. 1998) discloses a system that provides for the immediate payment to computer and other users for paying attention to an advertisement or other negatively priced information distributed over a computer network such as the Internet.
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