> In the middle of November, Little, Brown dropped the price from $9.99 to $2.99 for 24 hours — the digital equivalent of a one-day-only sale. "That sparks sale

> In the middle of November, Little, Brown dropped the price from $9.99 to $2.99 for 24 hours — the digital equivalent of a one-day-only sale. "That sparks sales; it gets people talking about it," says Terry Adams, a publisher with Little, Brown. "You've just expanded the market." Very similar to what Valve is doing. Now that books are more flexible in their distribution channels like software, what other things could publishers do? Downloadable content for books in the form of new chapters? Embedded animated diagrams or quizes? Interactive content, like a printed version of Sleep No More (http://sleepnomorenyc.com/tickets.htm http://sleepnomorenyc.com/tickets.htm) ? Code environment simulators like we so often nowadays on websites that teach you how to program? DIY-Language books that harass you to read them if you slack off in reading them enough?