Patent US 7,809,606

A method of publishing a work of literature includes storing the work of literature on a first computer being coupled to a network, the work of literature containing a plurality of keywords including all unique words in the work of literature; freely transmitting the work of literature to other computers on the network in response to display requests from the other computers; receiving a purchase request for a keyword in the work of literature from a second computer via the network; and updating the work of literature on the first computer to contain an indication that the keyword has been purchased for each appearance of the keyword in the work of literature.