Abstract: A price to advertise in an e-book is calculated for a product placement. The price is based on a frequency of a word forming part of the content of the e-book. The word is associated with the product placement in the context of the e-book. Payment and a destination network address are received from a purchaser. The payment is calculated based on the price and representative of consideration for purchase of the word in the e-book. The destination network address is accessible to the plurality of mobile electronic devices via a computer network. Links are provided within the content of the e-book in association with the word, the links configured to direct a mobile electronic device of the plurality of mobile electronic devices to the destination network address. The e-book, including the word and the associated links, is transmitted to the plurality of mobile electronic devices via the computer network.

Abstract: A method of publishing a work of literature on a network includes transmitting a published portion of the work of literature to a device via the network. The published portion includes an indication that a keyword has been sold to a purchaser for at least one appearance of the keyword in the published portion. The method also includes adding a new installment to the published portion, and updating the published portion to include the indication that the keyword has been sold for at least one appearance of the keyword in the new installment at no additional monetary cost to the purchaser of the keyword.

Abstract: A method of publishing a work of literature on a network includes transmitting a published portion of the work of literature to a device via the network. The published portion includes an indication that a keyword has been sold to a purchaser for at least one appearance of the keyword in the published portion. The method also includes adding a new installment to the published portion, and updating the published portion to include the indication that the keyword has been sold for at least one appearance of the keyword in the new installment at no additional monetary cost to the purchaser of the keyword.

Abstract: 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.

Abstract: 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.