Is it not enough to make a killing selling $5 bottles of Dasani and two-pill packs of Tylenol? Hudson Booksellers, from the folks behind those fine Hudson News airport establishments, has begun peddling e-books and book books online. The site, which appears to be (at least partially) powered by Kobo, offers a wide variety of titles, and some are even free. Dan Brown's The Da Vinci Code is the current pro-bono selection -- a click to download will bring you to a loosely branded Hudson page on Kobo's site, though you can score other titl
