I've added a new list of books on infectious diseases; you'll find it at the bottom of the middle column. It reflects a very agreeable vice I've developed in my old age: when I find a book that interests me, I order it online, whether in paper or ebook. In exchange for one unpleasant monthly shock on my credit card, I get 30 days of undeferred gratification.
Click on a title and you'll find yourself in a position to indulge in the same vice. I've read almost all the books on the list, and they're very much worth it. If you know of titles that should be on the list, let me know.