David Booker at the Centered Librarian posts a two-part presentation given by Eli Neiberger at the 2010 LJ/SLJ eBook Summit outlining the uncomfortable position ebooks puts libraries and offering several solutions. There are a couple of straw men in the presentation, but it's quite thought-provoking, and does offer some suggested for avoiding the screwage. 20 minutes in total – definitely worth your time.